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Created page with "==Key Stage 2== ===Meaning=== Astatine is a solid. ==Key Stage 3== ===Meaning=== right|300px|thumb|The [[Chemical Symbol|chemical symbol fo..."
==Key Stage 2==
===Meaning===
[[Astatine]] is a [[solid]].
==Key Stage 3==
===Meaning===
[[File:AstatineSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Astatine]].]]
[[Astatine]] is a [[Group 7]] [[metalloid]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 85.
===About Astatine===
: [[Astatine]] has the [[Chemical Symbol|chemical symbol]] [[Astatine|At]].
====Atomic Structure====
: [[Astatine]] as 85 [[proton]]s and 125 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 85 and an [[Relative Atomic Mass|atomic mass]] of 210.
: [[Astatine]] is in [[Period]] 6 of the [[Periodic Table]] because it has 6 [[Electron Orbital|electron shells]].
====Properties====
: [[Astatine]] is the least [[Reactivity|reactive]] [[Halogen]].
: [[Astatine]] [[Chemical Reaction|reacts]] with [[Hydrogen]] to produce [[Hydrogen Iodide]] which [[dissolve]]s in [[water]] to produce [[Hydroiodic Acid]].
: [[Astatine]] is a mild [[bleach]]ing agent.
: [[Astatine]] kills [[bacteria]].
: [[Astatine]] is a purple [[solid]] at [[STP|room temperature]].
: [[Astatine]] is a shiny [[solid]] at [[STP|room temperature]].
==Key Stage 4==
===Meaning===
[[Astatine]] is a [[Group 7]] [[metalloid]] [[element]], on the [[Periodic Table]], with 85 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Astatine===
: [[Astatine]] has the [[Chemical Symbol|chemical symbol]] [[Astatine|At]].
====Atomic Structure====
: The most [[Stable Isotope|stable isotope]] of [[Astatine]] has 125 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 210.
: [[Astatine]] is in [[Period]] 6 of the [[Periodic Table]] because it has 6 [[Electron Orbital|electron shells]].
====Properties====
: [[Astatine]] is a [[metalloid]] [[element]] so in some conditions it is an [[Electrical Conductor|electrical conductor]].
: [[Astatine]] is the least [[Reactivity|reactive]] [[Halogen]].
: [[Astatine]] [[Chemical Reaction|reacts]] with [[Hydrogen]] to produce [[Hydrogen Iodide]] which [[dissolve]]s in [[water]] to produce [[Hydroiodic Acid]].
: [[Astatine]] is a mild [[bleach]]ing agent.
: [[Astatine]] kills [[bacteria]].
: [[Astatine]] is a shiny [[solid]] at [[STP|standard temperature and pressure]] and has a high [[Melting Point|melting point]].
===Meaning===
[[Astatine]] is a [[solid]].
==Key Stage 3==
===Meaning===
[[File:AstatineSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Astatine]].]]
[[Astatine]] is a [[Group 7]] [[metalloid]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 85.
===About Astatine===
: [[Astatine]] has the [[Chemical Symbol|chemical symbol]] [[Astatine|At]].
====Atomic Structure====
: [[Astatine]] as 85 [[proton]]s and 125 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 85 and an [[Relative Atomic Mass|atomic mass]] of 210.
: [[Astatine]] is in [[Period]] 6 of the [[Periodic Table]] because it has 6 [[Electron Orbital|electron shells]].
====Properties====
: [[Astatine]] is the least [[Reactivity|reactive]] [[Halogen]].
: [[Astatine]] [[Chemical Reaction|reacts]] with [[Hydrogen]] to produce [[Hydrogen Iodide]] which [[dissolve]]s in [[water]] to produce [[Hydroiodic Acid]].
: [[Astatine]] is a mild [[bleach]]ing agent.
: [[Astatine]] kills [[bacteria]].
: [[Astatine]] is a purple [[solid]] at [[STP|room temperature]].
: [[Astatine]] is a shiny [[solid]] at [[STP|room temperature]].
==Key Stage 4==
===Meaning===
[[Astatine]] is a [[Group 7]] [[metalloid]] [[element]], on the [[Periodic Table]], with 85 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Astatine===
: [[Astatine]] has the [[Chemical Symbol|chemical symbol]] [[Astatine|At]].
====Atomic Structure====
: The most [[Stable Isotope|stable isotope]] of [[Astatine]] has 125 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 210.
: [[Astatine]] is in [[Period]] 6 of the [[Periodic Table]] because it has 6 [[Electron Orbital|electron shells]].
====Properties====
: [[Astatine]] is a [[metalloid]] [[element]] so in some conditions it is an [[Electrical Conductor|electrical conductor]].
: [[Astatine]] is the least [[Reactivity|reactive]] [[Halogen]].
: [[Astatine]] [[Chemical Reaction|reacts]] with [[Hydrogen]] to produce [[Hydrogen Iodide]] which [[dissolve]]s in [[water]] to produce [[Hydroiodic Acid]].
: [[Astatine]] is a mild [[bleach]]ing agent.
: [[Astatine]] kills [[bacteria]].
: [[Astatine]] is a shiny [[solid]] at [[STP|standard temperature and pressure]] and has a high [[Melting Point|melting point]].