Element of the Week


Atomic Number: 5

Atomic Mass: 10.811

Element Category: Metalloid Group: 3 Number of Electrons in Outer Shell: 3


The name Boron comes from the mineral in which it was originally mined, called borax.

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Atomic Number: 6

Atomic Mass: 12.011

Element Category: Other Non-Metals Group: 4 Number of Electrons in Outer Shell: 4


The English name carbon comes from the Latin carbo for coal and charcoal.
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Atomic Number: 7

Atomic Mass: 14.007

Element Category: Non-Metal Group: 5 Number of Electrons in Outer Shell: 5


Nitrogen was discovered by Daniel Rutherford in 1772 and named by Jean-Antoine Chaptal in 1790.
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Atomic Number: 8

Atomic Mass: 15.999

Element Category: Non-Metal Group: 6 Number of Electrons in Outer Shell: 6


Oxygen is a diatomic molecule, meaning that two atoms of oxygen combine to form the element in its natural state.

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Video Gallery…

These short videos show you how do things safely and correctly to give you confidence when you do them yourself in the lab.  You can watch them as many times as you need to get clued up on basic lab skills, then impress your teacher with your know-how!

Shaking a Test Tube:  we often use test tubes for chemical tests and need to dissolve powder into liquids.  This short film shows you how to shake the solution without spillage.

More videos…
Holly Chrishop

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Holly Chrishop graduated in 2013. She is now a project manager for Catalent Pharma solutions.

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Compound that gives off H+ ions in solution.


Substance which gives off hydroxide ions (OH-) in solution.


The smallest object that retains properties of an element. Composed of electrons and a nucleus (containing protons and neutrons).


Two or more atoms joined together chemically, with covalent or ionic bonds.


One of the parts of the atom having a negative charge. Indivisible particle with a charge of -1.


Substance consisting of only one type of atom.


Measures the size of an object using length measurements in three dimensions. A good way to measure liquid quantities