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[[Beryllium]] is a [[Group 2]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 4.
===About Beryllium===
====Molecular Structure====
: [[Beryllium]] has the [[Chemical Symbol|chemical symbol]] [[Beryllium|Be]].
: [[Beryllium]] joins together in large numbers to form a giant [[metal]] [[molecule]].
====Atomic Structure====
: [[Beryllium]] as 4 [[proton]]s and 5 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 4 and an [[Relative Atomic Mass|atomic mass]] of 9.
: An [[atom]] of [[Beryllium]] has only 2 [[electron]]s in its [[Outer Shell|outer shell]].
====Properties====
: [[Beryllium]] is the least [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]].
: [[Beryllium]] 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]].
: [[Beryllium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Beryllium Hydroxide]] and [[Chemical Reaction|reacts]] strongly with [[acid]]s to produce a [[Beryllium]] [[salt]].
: [[Lithium]] is a [[solid]] at [[STP|room temperature]].
==Key Stage 4==
[[Beryllium]] is a [[Group 2]] [[element]], on the [[Periodic Table]], with 4 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Beryllium===
====Molecular Structure====: [[Beryllium]] has the [[Chemical FormulaSymbol|chemical formulasymbol]] [[Beryllium|Be]].: [[Beryllium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]].====Atomic Structure====
: The most [[Stable Isotope|stable isotope]] of [[Beryllium]] has 5 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 9.
: An [[atom]] of [[Beryllium]] has only 2 [[electron]]s in its [[Outer Shell|outer shell]].
: [[Beryllium]] [[ion]]s have lost two [[electron]]s to become [[Positive Charged|positively charged]].
{| class="wikitable"
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|[[File:BromineIonFormation.png|center|400px]]
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] showing the formation of a [[Beryllium]] [[ion]].
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====Properties====
: [[Beryllium]] is the least [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]].
: [[Beryllium]] 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]].
: [[Beryllium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Beryllium Hydroxide]] and [[Chemical Reaction|reacts]] strongly with [[acid]]s to produce a [[Beryllium]] [[salt]].
: [[Beryllium]] is a [[solid]] at [[STP|standard temperature and pressure]].
{| class="wikitable"