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[[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 37.
===About Rubidium===
====Molecular Structure====
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]].
: [[Rubidium]] [[atom]]s join together in large numbers to form a giant [[metal]] [[molecule]].
====Atomic Structure====
: [[Rubidium]] has 37 [[proton]]s and 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 37 and an [[Relative Atomic Mass|atomic mass]] of 85.
: An [[atom]] of [[Rubidium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]].
====Properties====
: [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]].
: [[Rubidium]] is more [[Reactivity|reactive]] than [[Carbon]] on the [[Reactivity Series|reactivity series]] so it must be [[Extraction of Metals|extracted]] from its [[ore]] using [[electrolysis]].
: [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]].
: [[Rubidium]] is a [[solid]] at [[STP|room temperature]].
==Key Stage 4==
===Meaning===
[[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 37 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Rubidium===
====Molecular Structure====
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]].
: [[Rubidium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]].
====Atomic Structure====
: The most [[Stable Isotope|stable isotope]] of [[Rubidium]] has 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 85.
: An [[atom]] of [[Rubidium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]].
: [[Rubidium]] [[ion]]s have lost an [[electron]] to become [[Positive Charged|positively charged]].
====Properties====
: [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]].
: [[Rubidium]] is more [[Reactivity|reactive]] than [[Carbon]] on the [[Reactivity Series|reactivity series]] so it must be [[Extraction of Metals|extracted]] from its [[ore]] using [[electrolysis]].
: [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]].
: [[Rubidium]] is a [[solid]] at [[STP|standard temperature and pressure]] with a [[Melting Point|melting point]] of 39.3 [[Degrees Celsius|°C]].