Anouncement

Version 1.4.1 of Atomium has been released to the AppStore. The new release is free of charge to all owners of previous versions.

Supported languages

  • English

  • Deutsch

Atomium is a periodic table for the iPhone™ and iPod touch®, addressed especially towards the scientific community. Never the less Atomium is also best suited for the needs of science-teachers, students from high-school through university.

So if you are working on the Large Hadron Collider at CERN and Stephen Hawking is among your best friends, then this is the reference you always dreamed of.

On the other hand, if you are looking for some help with your science project or homework, then Atomium is what you are looking for. By the way, with Atomium installed on your iPhone or iPod touch you can easily impress your science teacher...

Hereafter you will find a detailed description of the different functions of Atomium.

Navigation

In either orientation the Tab-Bar at the bottom of the screen allows you to navigate to the different content-sections offered by Atomium.

Periodic Table List of Elements Constants About Atomium

The left-most button of the Tab-Bar brings up the classic representation of the periodic system. Rotating the iPhone/iPod touch to the portrait orientation will switch the table to its vertical representation. In the vertical representation, the periodic table is rotated counter-clockwise by 90° and mirrored vertically, which allows a more efficient usage of the screen when the iPhone/iPod touch is oriented vertically. Optionally this behavior can be switched off in the 'Settings' application.

The 'List' button displays an alphabetically list of all the chemical elements — an alternate to the classic periodic table.

Additionally to the properties of the chemical elements, Atomium offers a huge list of common constants used in science. The constants are accessed via the 'Constants' button.

The last button, the 'About' button, shows a screen with links to submit feedback, suggestions and questions to the author of Atomium.

Periodic Table

To a scientist the periodic table is the most convenient way to list all the chemical elements. Therefore Atomium always starts up by displaying this view. As mentioned above, the periodic table is drawn vertically when the iPhone/iPod touch is in vertical orientation. This feature can be switched off in the 'Settings' application so that also in this orientation the periodic table is drawn horizontally. Below are two images showing an iPhone in horizontal respectively vertical orientation. (Click the images to magnify them).

As default, the color-scheme represents the element category. The settings offer the possibility to switch to a different color-scheme. For the moment the following properties can be represented in the table-view:

  • Element Category
  • Valences
  • Blocks
  • Metals and Non-metals
  • Melting temperature
  • Boiling temperature
  • Electronegativity
  • Atomic radius (empirical)
  • Atomic radius (calculated)

The image below shows the different color-schemes in landscape orientation. Start the slideshow by clicking onto the image. You can browse through the images by clicking onto the buttons.

Since the screen of the iPhone/iPod touch is quite small, it might be a challenge to select the desired element from the periodic table view. Therefore, the legend explaining the color codes changes to a 'magnifying view' depicting the currently selected element together with the most important properties. In the pictures below, this is illustrated with the 'element category' property. (Click the images to magnify them)

Releasing the finger from the display while an element is selected, Atomium will display all the properties of that element.

Element List

An alternate method to display the chemical elements is to list them alphabetically. Tapping onto the 'List' button of the Tab-Bar will switch from the traditional table to the list shown in the picture below.

For faster navigation inside the list, the right side of the window shows an index, tapping on one of the letters makes the list jump right to that letter. Tapping onto an element name brings you to the properties of the selected element.

Properties of the chemical elements

The properties of the chemical elements are displayed in a table view. For a better readability the properties are grouped together into the following subsections.

  • General
  • Safety Instructions
  • Electronic configuration
  • Physical properties
  • Optical properties
  • Electronegativity
  • Crystall structure
  • Atom Size
  • Elastic properties
  • Hardness
  • Abundance

A complete listing of all the chemical properties is given at the bottom of this section.

In order to find your way trough the vast number of available properties, Atomium offers the possibility to populate a 'Frequently used' section with your most often looked-up properties. The slide-show below starts with an empty 'Frequently used' section. In the following images, chemical properties are added and then removed from this section. You can browse through the images by clicking onto the buttons.

A property can be added on the fly to the 'Frequently used' section by simply double-tapping onto the corresponding table row. In the same way, a property is removed from the 'Frequently used' section by double-tapping onto it's table row.

In the 'Settings' application you can customize the behavior of the 'Frequently used' section. On the one hand you can set the maximum of properties which should be shown in the 'Frequently used' section and on the other hand you can completely switch it off, so that it will be removed from the properties table.

The following listing shows all of the 60+ properties offered by Atomium, but keep in mind that even this list won't stop growing.

  • Atomic Number
  • Atomic Symbol
  • Atomic weight
  • State at 298 K
  • Natural occurrence
  • Classification
  • Group, Period, Block
  • Group name
  • Electrochemical Equivalent
  • Electron Work Function
  • Valence Electron Potential
  • Element category
  • Isotopes*
  • Ionization Energies*
  • Color
  • Date of discovery
  • CAS Registry ID
  • Ground state electronic configuration
  • Shell structure
  • Valence
  • Oxidation states
  • Melting point
  • Boiling point
  • Critical temperature
  • Superconduction temperature
  • Thermal conductivity
  • Coefficient of linear thermal expansion
  • Density of solid
  • Molar volume
  • Velocity of sound
  • Youngs modulus
  • Shear modulus
  • Bulk modulus
  • Poisson Ratio
  • Hardness (Mineral)
  • Hardness (Brinell)
  • Hardness (Vickers)

  • Electrical resistivity
  • Reflectivity
  • Refractive index
  • Enthalpy of fusion
  • Enthalpy of vaporization
  • Enthalpy of atomization
  • Abundance (Universe by weight)
  • Abundance (Universe by atoms)
  • Abundance (Sun by weight)
  • Abundance (Sun by atoms)
  • Abundance (Earth by weight)
  • Abundance (Earth by atoms)
  • Abundance (Sea water by weight)
  • Abundance (Sea water by atoms)
  • Abundance (Stream by weight)
  • Abundance (Stream by atoms)
  • Abundance (Human by weight)
  • Abundance (Human by atoms)
  • Space group
  • Structure
  • Cell parameters
  • Atomic radius (empirical)
  • Atomic radius (calculated)
  • Covalent radius (empirical)
  • Van der Waals radius
  • Radius - metallic (12)
  • Bond length in element
  • Electronegativity (Pauling)
  • Electronegativity (Sanderson)
  • Electronegativity (Allred Rochow)
  • Electronegativity (Mulliken-Jaffe)
  • Electronegativity (Allen)
  • Dangerous Substances Directive (67/548/EEC)
  • Risk Statements
  • Safety Statements
  • Radioactive

*Since the number of isotopes and ionization energies per element might be quite large, this data is displayed in a separate tables accessible by a simple tap onto the isotopes/ionization energies row.

Constants

As a scientist's companion, additionally to the properties of the chemical elements, Atomium also offers a huge list of commonly used constants. Use the buttons to navigate through the pictures.

The following listing shows all of the 170+ constants. This list will keep growing. For your convenience, the values of a large number of the constants are indicated in several different units.

  • Speed of light in vacuum
  • Magnetic constant
  • Electric constant
  • Characteristic impedance of vacuum
  • Newtonian constant of gravitation
  • Newtonian constant of gravitation /(h/2π)c
  • Planck constant
  • Planck constant /2π
  • Planck constant /2πc
  • Planck mass
  • Planck mass ·c2
  • Planck length
  • Planck time
  • Planck temperature
  • Hubble constant
  • Elementary charge
  • Elementary charge /h
  • Magnetic flux quantum
  • Conductance quantum
  • Inverse of conductance quantum
  • Josephson constant
  • von Klitzing constant
  • Bohr magneton
  • Bohr magneton /h
  • Bohr magneton /hc
  • Bohr magneton /k
  • Nuclear magneton
  • Nuclear magneton /h
  • Nuclear magneton /hc
  • Nuclear magneton /k
  • Avogadro constant
  • Atomic mass constant
  • Faraday constant
  • Molar Planck constant
  • Molar Planck constant ·c
  • Molar gas constant
  • Boltzmann constant
  • Boltzmann constant /h
  • Boltzmann constant /hc
  • Molar volume of ideal gas (273.15 K, 100 kPa)
  • Molar volume of ideal gas (273.15 K, 101.325 kPa)
  • Loschmidt constant (273.15 K, 101.325 kPa)
  • Sackur-Tetrode constant (1 K, 100 kPa)
  • Sackur-Tetrode constant (1 K, 101.325 kPa)
  • Stefan-Boltzmann constant
  • 1. radiation constant
  • 1. radiation constant for spectral radiance
  • 2. radiation constant
  • Wien displacement law constant (wavelength)
  • Wien displacement law constant (frequency)
  • Fine-structure constant
  • Inverse fine-structure constant
  • Rydberg constant
  • Rydberg constant ·c
  • Rydberg constant ·hc
  • Bohr radius
  • Hartree energy
  • Quantum of circulation
  • Quantum of circulation ·2
  • Fermi coupling constant
  • Weak mixing angle
  • Electron mass
  • Electron to muon mass ratio
  • Electron to tau mass ratio
  • Electron to proton mass ratio
  • Electron to neutron mass ratio
  • Electron to deuteron mass ratio
  • Electron to alpha particle mass ratio
  • Electron charge to mass quotient
  • Electron Compton wavelength
  • Electron Compton wavelength /2π
  • Classical electron radius
  • Thomson cross section
  • Electron magnetic moment
  • Electron magnetic moment to Bohr magneton ratio
  • Electron magnetic moment to nuclear magneton ratio
  • Electron magnetic moment anomaly
  • Electron g-factor
  • Electron to muon magnetic moment ratio
  • Electron to proton magnetic moment ratio
  • Electron to shielded proton magnetic moment ratio
  • Electron to neutron magnetic moment ratio
  • Electron to deuteron magnetic moment ratio
  • Electron to shielded helion magnetic moment ratio
  • Electron gyromagnetic ratio
  • Electron gyromagnetic ratio /2π
  • Proton mass
  • Proton to electron mass ratio
  • Proton to muon mass ratio
  • Proton to tau mass ratio
  • Proton to neutron mass ratio

    Proton charge to mass quotient
  • Proton Compton wavelength
  • Proton Compton wavelength over /2π
  • Proton rms charge radius
  • Proton magnetic moment
  • Proton magnetic moment to Bohr magneton ratio
  • Proton magnetic moment to nuclear magneton ratio
  • Proton g-factor
  • Proton to neutron magnetic moment ratio
  • Shielded proton magnetic moment
  • Shielded proton magnetic moment to Bohr magneton ratio
  • Shielded proton magnetic moment to nuclear magneton ratio
  • Proton magnetic shielding correction
  • Proton gyromagnetic ratio
  • Proton gyromagnetic ratio /2π
  • Shielded proton gyromagnetic ratio
  • Shielded proton gyromagnetic ratio /2π
  • Neutron mass
  • Neutron to electron mass ratio
  • Neutron to muon mass ratio
  • Neutron to tau mass ratio
  • Neutron to proton mass ratio
  • Neutron Compton wavelength
  • Neutron Compton wavelength /2π
  • Neutron magnetic moment
  • Neutron magnetic moment to Bohr magneton ratio
  • Neutron magnetic moment to nuclear magneton ratio
  • Neutron g-factor
  • Neutron to electron magnetic moment ratio
  • Neutron to proton magnetic moment ratio
  • Neutron to shielded proton magnetic moment ratio
  • Neutron gyromagnetic ratio
  • Neutron gyromagnetic ratio over /2π
  • Alpha particle mass
  • Alpha particle to electron mass ratio
  • Alpha particle to proton mass ratio
  • Deuteron mass
  • Deuteron to electron mass ratio
  • Deuteron to proton mass ratio
  • Deuteron rms charge radius
  • Deuteron magnetic moment
  • Deuteron magnetic moment to Bohr magneton ratio
  • Deuteron magnetic moment to nuclear magneton ratio
  • Deuteron g-factor
  • Deuteron to electron magnetic moment ratio
  • Deuteron to proton magnetic moment ratio
  • Deuteron to neutron magnetic moment ratio
  • Helion mass
  • Helion to electron mass ratio
  • Helion to proton mass ratio
  • Shielded helion magnetic moment
  • Shielded helion magnetic moment to Bohr magneton ratio
  • Shielded helion magnetic moment to nuclear magneton ratio
  • Shielded helion to proton magnetic moment ratio
  • Shielded helion to shielded proton magnetic moment ratio
  • Shielded helion gyromagnetic ratio
  • Shielded helion gyromagnetic ratio /2π
  • Triton mass
  • Triton to electron mass ratio
  • Triton to proton mass ratio
  • Triton magnetic moment
  • Triton magnetic moment to Bohr magneton ratio
  • Triton magnetic moment to nuclear magneton ratio
  • Triton g-factor
  • Triton to electron magnetic moment ratio
  • Triton to proton magnetic moment ratio
  • Triton to neutron magnetic moment ratio
  • Muon mass
  • Muon to electron mass ratio
  • Muon to tau mass ratio
  • Muon to proton mass ratio
  • Muon to neutron mass ratio
  • Muon Compton wavelength
  • Muon Compton wavelength /2π
  • Muon magnetic moment
  • Muon magnetic moment to Bohr magneton ratio
  • Muon magnetic moment to nuclear magneton ratio
  • Muon magnetic moment anomaly
  • Muon g-factor
  • Muon-proton magnetic moment ratio
  • Tau mass
  • Tau to electron mass ratio
  • Tau to muon mass ratio
  • Tau to proton mass ratio
  • Tau to neutron mass ratio
  • Tau Compton wavelength
  • Tau Compton wavelength over /2π

Win a Promotional-Code

Congratulations, you made it all the way to the end of the description of Atomium. To honor your effort, You have the possibility to win a free promotional-code by solving the following challenge.

Preferences — 'Settings' application

The options to customize Atomium are found in the 'Settings' application on the iPhone/iPod touch.

Sound effects

In the traditional periodic table a discreet 'ping' sound is played when the finger is moved from one element to another one. This sound can be switched on/off in this place.

Temperature Units

With this setting you can switch between the three major temperature units: Kelvin - Celsius - Fahrenheit.

Vertical orientation

As mentioned above, when in portrait orientation, Atomium draws the periodic table in a vertical representation. With the switch in this row it is possible to switch from the vertical to the horizontal drawing of the periodic table.

Color scheme

In this section you can choose the color scheme used to draw the chemical elements in the periodic table. The available color schemes are listed above under 'periodic table'.

Element Properties

With the switch in the first row of this section it is possible to switch off the 'Frequently used' section in the element properties list. If you choose this option, this section won't be displayed at all. With the second option 'Maximum items' it is possible to define the maximum number of properties which can be added to the 'Frequently used' section.

Constants

The settings for the 'Constants' work in the same way than those for the 'Element Properties'. Here too the 'Frequently used' section can be switched on/off by flipping the switch in the first row, and the 'Maximum items' displayed can be changed with the control in the second row.




Copyright ©2008-2009 Dr. Henri Hansen
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