Difference between revisions of "Calcium"
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: [[Calcium]] has the [[Chemical Formula|chemical formula]] [[Calcium|Ca]]. | : [[Calcium]] has the [[Chemical Formula|chemical formula]] [[Calcium|Ca]]. | ||
: [[Calcium]] as 20 [[proton]]s and 20 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 20 and an [[Relative Atomic Mass|atomic mass]] of 40. | : [[Calcium]] as 20 [[proton]]s and 20 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 20 and an [[Relative Atomic Mass|atomic mass]] of 40. | ||
| − | : [[Calcium]] is | + | : [[Calcium]] is a more [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]] than [[Magnesium]] but less [[Reactivity|reactive]] than [[Strontium]]. |
: [[Calcium]] 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]]. | : [[Calcium]] 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]]. | ||
: [[Calcium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Calcium Hydroxide]] and strongly with [[acid]] to produce [[Calcium]] [[salt]]s. | : [[Calcium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Calcium Hydroxide]] and strongly with [[acid]] to produce [[Calcium]] [[salt]]s. | ||
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: [[Calcium]] has the [[Chemical Formula|chemical formula]] [[Calcium|Ca]]. | : [[Calcium]] has the [[Chemical Formula|chemical formula]] [[Calcium|Ca]]. | ||
: The most [[Stable Isotope|stable isotope]] of [[Calcium]] has 20 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 40. | : The most [[Stable Isotope|stable isotope]] of [[Calcium]] has 20 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 40. | ||
| − | : [[Calcium]] is more [[Reactivity|reactive]] | + | : [[Calcium]] is a more [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]] than [[Magnesium]] but less [[Reactivity|reactive]] than [[Strontium]]. |
: [[Calcium]] 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]]. | : [[Calcium]] 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]]. | ||
: [[Calcium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Calcium Hydroxide]] and strongly with [[acid]] to produce [[Calcium]] [[salt]]s. | : [[Calcium]] [[Chemical Reaction|reacts]] strongly with [[steam]] to produce [[Hydrogen]] [[gas]] and [[Calcium Hydroxide]] and strongly with [[acid]] to produce [[Calcium]] [[salt]]s. | ||
Revision as of 14:44, 31 March 2019
Contents
Key Stage 2
Meaning
Calcium is a metal found in our bones.
Key Stage 3
Meaning
File:CalciumSymbol.png
The chemical symbol for Calcium.
Calcium is a Group 2 element, on the Periodic Table, with an atomic number of 20.
About Calcium
- Calcium has the chemical formula Ca.
- Calcium as 20 protons and 20 neutrons in its nucleus giving it an Atomic Number of 20 and an atomic mass of 40.
- Calcium is a more reactive alkali earth metal than Magnesium but less reactive than Strontium.
- Calcium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Calcium reacts strongly with steam to produce Hydrogen gas and Calcium Hydroxide and strongly with acid to produce Calcium salts.
- Calcium is a solid at room temperature.
- An atom of Calcium has only 2 electrons in its outer shell.
- Calcium ions have lost 2 electrons to become positively charged.
Key Stage 4
Meaning
Calcium is a Group 2 element, on the Periodic Table, with 20 protons in the nucleus.
About Calcium
- Calcium has the chemical formula Ca.
- The most stable isotope of Calcium has 20 neutrons in its nucleus giving it an atomic mass of 40.
- Calcium is a more reactive alkali earth metal than Magnesium but less reactive than Strontium.
- Calcium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Calcium reacts strongly with steam to produce Hydrogen gas and Calcium Hydroxide and strongly with acid to produce Calcium salts.
- Calcium is a solid at standard temperature and pressure.
- An atom of Calcium has only 2 electrons in its outer shell.
- Calcium ions have lost two electrons to become positively charged.