Difference between revisions of "Sodium"
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[[Sodium]] is a [[Group 1]] [[element]] with 11 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | [[Sodium]] is a [[Group 1]] [[element]] with 11 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | ||
===About Sodium=== | ===About Sodium=== | ||
| − | : [[Sodium]] has the [[Chemical Formula|chemical formula]] [[Sodium| | + | : [[Sodium]] has the [[Chemical Formula|chemical formula]] [[Sodium|Na]]. |
: The most [[Stable Isotope|stable isotope]] of [[Sodium]] has 12 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 23. | : The most [[Stable Isotope|stable isotope]] of [[Sodium]] has 12 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 23. | ||
: [[Sodium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Lithium]] but less [[Reactivity|reactive]] than [[Potassium]]. | : [[Sodium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Lithium]] but less [[Reactivity|reactive]] than [[Potassium]]. | ||
Revision as of 13:25, 31 March 2019
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
File:SodiumSymbol.png
The chemical symbol for Sodium.
Sodium is a Group 1 element with an atomic number of 11.
About Sodium
- Sodium has the chemical formula Na.
- Sodium has 11 protons and 12 neutrons in its nucleus giving it an Atomic Number of 11 and an atomic mass of 23.
- Sodium is a more reactive alkali metal than Lithium but less reactive than Potassium.
- Sodium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Sodium reacts strongly with water to produce Hydrogen gas and Sodium Hydroxide.
- Sodium is a solid at room temperature.
- An atom of Sodium has only 1 electron in its outer shell.
- Sodium ions have lost an electron to become positively charged.
Key Stage 4
Meaning
Sodium is a Group 1 element with 11 protons in the nucleus.
About Sodium
- Sodium has the chemical formula Na.
- The most stable isotope of Sodium has 12 neutrons in its nucleus giving it an atomic mass of 23.
- Sodium is a more reactive alkali metal than Lithium but less reactive than Potassium.
- Sodium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Sodium reacts strongly with water to produce Hydrogen gas and Sodium Hydroxide.
- Sodium is a solid at standard temperature and pressure with a melting point of 97.8 °C.
- An atom of Sodium has only 1 electron in its outer shell.
- Sodium ions have lost an electron to become positively charged.