Hydrogen

Contents

Key Stage 2

Meaning

Hydrogen is a gas that can catch fire easily.

Key Stage 3

Meaning

Hydrogen is a non-metal element with 1 proton in the nucleus.

About Hydrogen

Hydrogen has the chemical formula H₂.

Hydrogen is a gas at room temperature.

Hydrogen gas is less dense than air.

Testing for Hydrogen

1. Collect the gas in a test tube.
2. Place a lit splint over the mouth of the test tube.
3. If a 'squeaky pop' sound is made then the gas is Hydrogen.

Key Stage 4

Meaning

Hydrogen is a non-metal element with 1 proton in the nucleus.

About Hydrogen

Hydrogen has the chemical formula H₂.

Hydrogen is a gas at standard temperature and pressure.

Hydrogen gas is less dense than air.

Isotopes

Hydrogen has three common isotopes;

• Hydrogen – A stable isotope with no neutrons.
• Deuterium – A stable isotope with one neutron.
• Tritium – An unstable isotope with two neutrons.

Testing for Hydrogen

1. Collect the gas in a test tube.
2. Place a lit splint over the mouth of the test tube.
3. If a 'squeaky pop' sound is made then the gas is Hydrogen.