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Nitrogen

Key Stage 2

Meaning

Nitrogen is a gas in the air.

Key Stage 3

A 2 dimensional representation of a Nitrogen atom with 7 protons and 7 neutrons in the nucleus and 7 electrons orbiting the nucleus.

Meaning

Nitrogen is a Group 5 non-metal element, on the Periodic Table, with an atomic number of 7.

About Nitrogen

Nitrogen makes up 78% of the air.
Nitrogen has the chemical symbol N.

Molecular Structure

The chemical formula for a Nitrogen molecule is N2.

Atomic Structure

Nitrogen has 7 protons and 7 neutrons in its nucleus giving it an atomic number of 7 and a atomic mass of 14.
Nitrogen is in Period 2 of the Periodic Table because it has 2 electron shells.

Properties

Nitrogen is a gas at room temperature.
Nitrogen rarely reacts with other chemicals.

Key Stage 4

A 2 dimensional representation of the Bohr Model of a Nitrogen-14 isotope with 7 protons and 7 neutrons in the nucleus and 2 electrons in the first shell and 5 in the outer shell.

Meaning

Nitrogen is a Group 5 non-metal element, on the Periodic Table, with 7 protons in the nucleus.

About Nitrogen

Nitrogen makes up 78% of the air.
Nitrogen has the chemical symbol N.

Molecular Structure

The chemical formula for a Nitrogen molecule is N2.
Nitrogen forms a covalent bond with another Nitrogen atom to produce a simple covalent molecule.

Atomic Structure

The most common stable isotope of Nitrogen has 7 neutrons in its nucleus giving it an atomic mass of 14.
Nitrogen is in Period 2 of the Periodic Table because it has 2 electron shells.
Nitrogen has 5 electrons in its outer shell and needs 3 more electrons to get a full outer shell so it can form 3 bonds with other atoms.

Properties

Nitrogen is gas at standard temperature and pressure.
Nitrogen rarely reacts with other chemicals.

References

AQA

Nitrogen, pages 34, 65, 211, 215, 217, 219, 294-5, 344-5, GCSE Chemistry; Student Book, Collins, AQA
Nitrogen, pages 59, 287, GCSE Physics; Student Book, Collins, AQA
Nitrogen; dinitrogen tetroxide, page 214, GCSE Chemistry; Student Book, Collins, AQA
Nitrogen; dioxide, page 214, GCSE Chemistry; Student Book, Collins, AQA
Nitrogen; oxides (NOX) as pollutants, pages 312-5, GCSE Chemistry; Student Book, Collins, AQA