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==Key Stage 4==
[[File:FrKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Francium]].]]
===Meaning===
[[Francium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 87 [[proton]]s in the [[Atomic Nucleus|nucleus]].
: The most [[Stable Isotope|stable isotope]] of [[Francium]] has 136 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 223.
: An [[atom]] of [[Francium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]].
: [[Francium]] [[ion]]s have lost an [[electron]] to become [[Positive ChargedCharge|positively charged]].
====Properties====
: [[Francium]] is the most [[Reactivity|reactive]] [[Alkali Metal|alkali metal]].
: [[Francium]] does not exist in nature but has been produced in small quantities in [[Particle Accelerator|particle accelerators]].
: [[Francium]] would [[Chemical Reaction|react]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and Francium Hydroxide.