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[[Sodium]] is a [[metal]].
==Key Stage 3==
[[File:SodiumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Sodium]].]]
[[File:Na-23_WK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Sodium]] [[atom]] with 11 [[proton]]s and 12 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 11 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]]
===Meaning===
[[Sodium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 11.
===About Sodium===
==Key Stage 4==
[[File:NaKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Sodium]].]]
[[File:Na-23_WK.PNG|right|200px|thumb|A 2 dimensional representation of the [[Bohr Model]] of a [[Sodium]]-23 [[isotope]] with 11 [[proton]]s and 12 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 2 [[electron]]s in the first [[Electron Orbital|shell]], 8 in the second and 1 in the [[Outer Shell|outer shell]].]]
===Meaning===
[[Sodium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 11 [[proton]]s in the [[Atomic Nucleus|nucleus]].
: 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.
: An [[atom]] of [[Sodium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]].
: [[Sodium]] [[ion]]s have lost an [[electron]] to become [[Positive ChargedCharge|positively charged]].
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