Difference between revisions of "Hydrogen"
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: [[Hydrogen]] [[Chemical Reaction|reacts]] with [[Oxygen]] to form [[water]]. | : [[Hydrogen]] [[Chemical Reaction|reacts]] with [[Oxygen]] to form [[water]]. | ||
− | ===Testing for Hydrogen=== | + | ====Testing for Hydrogen==== |
#Collect the [[gas]] in a [[Test Tube|test tube]]. | #Collect the [[gas]] in a [[Test Tube|test tube]]. | ||
#Place a lit [[Wooden Splint|splint]] over the mouth of the [[Test Tube|test tube]]. | #Place a lit [[Wooden Splint|splint]] over the mouth of the [[Test Tube|test tube]]. | ||
#If a 'squeaky pop' [[sound]] is made then the [[gas]] is [[Hydrogen]]. | #If a 'squeaky pop' [[sound]] is made then the [[gas]] is [[Hydrogen]]. |
Revision as of 19:03, 31 March 2019
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
Molecular Structure
Atomic Structure
- Hydrogen has 1 proton and 0 neutrons so it has an atomic mass of 1.
- An atom of hydrogen has one electron.
- A Hydrogen ion has usually lost its only electron to become positively charged.
Properties
- Hydrogen is a gas at room temperature.
- Hydrogen gas is less dense than air.
- Hydrogen reacts with Oxygen to form water.
Testing for Hydrogen
- Collect the gas in a test tube.
- Place a lit splint over the mouth of the test tube.
- 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
Molecular Structure
- Hydrogen has the chemical formula H2.
- Two Iodine atoms join together in a covalent bond.
A dot and cross diagram of a Hydrogen molecule. |
Atomic Structure
- The most common isotope of Hydrogen has 1 proton and 0 neutrons so it has an atomic mass of 1.
Hydrogen | Deuterium | Tritium |
Hydrogen always has 1 proton but isotope there are no neutrons. | Hydrogen always has 1 proton but in this isotope there is 1 neutron. This isotope of Hydrogen is known as Deuterium. | Hydrogen always has 1 proton but in this isotope there is 2 neutrons. This isotope of Hydrogen is known as Tritium. |
- An atom of hydrogen has one electron.
- A Hydrogen ion has usually lost its only electron to become positively charged.
Properties
- Hydrogen is a gas at standard temperature and pressure.
- Hydrogen gas is less dense than air.
- Hydrogen reacts with Oxygen to form water.