Difference between revisions of "Radium"
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: [[Radium]] has the [[Chemical Formula|chemical formula]] [[Radium|Ra]]. | : [[Radium]] has the [[Chemical Formula|chemical formula]] [[Radium|Ra]]. | ||
: [[Radium]] as 88 [[proton]]s and 138 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 88 and an [[Relative Atomic Mass|atomic mass]] of 226. | : [[Radium]] as 88 [[proton]]s and 138 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 88 and an [[Relative Atomic Mass|atomic mass]] of 226. | ||
| − | : [[Radium]] is | + | : [[Radium]] is the most [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]]. |
: [[Radium]] 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]]. | : [[Radium]] 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]]. | ||
: [[Radium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Radium Hydroxide]] and strongly with [[acid]] to produce [[Radium]] [[salt]]s. | : [[Radium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Radium Hydroxide]] and strongly with [[acid]] to produce [[Radium]] [[salt]]s. | ||
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: [[Radium]] has the [[Chemical Formula|chemical formula]] [[Radium|Ra]]. | : [[Radium]] has the [[Chemical Formula|chemical formula]] [[Radium|Ra]]. | ||
: The most [[Stable Isotope|stable isotope]] of [[Radium]] has 138 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 226. | : The most [[Stable Isotope|stable isotope]] of [[Radium]] has 138 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 226. | ||
| − | : [[Radium]] is | + | : [[Radium]] is the most [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]]. |
: [[Radium]] 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]]. | : [[Radium]] 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]]. | ||
: [[Radium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Radium Hydroxide]] and strongly with [[acid]] to produce [[Radium]] [[salt]]s. | : [[Radium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Radium Hydroxide]] and strongly with [[acid]] to produce [[Radium]] [[salt]]s. | ||
Revision as of 14:56, 31 March 2019
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
File:RadiumSymbol.png
The chemical symbol for Radium.
Radium is a Group 2 element, on the Periodic Table, with an atomic number of 88.
About Radium
- Radium has the chemical formula Ra.
- Radium as 88 protons and 138 neutrons in its nucleus giving it an Atomic Number of 88 and an atomic mass of 226.
- Radium is the most reactive alkali earth metal.
- Radium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Radium reacts strongly with water to produce Hydrogen gas and Radium Hydroxide and strongly with acid to produce Radium salts.
- Radium is a solid at room temperature.
- An atom of Radium has only 2 electrons in its outer shell.
- Radium ions have lost 2 electrons to become positively charged.
Key Stage 4
Meaning
Radium is a Group 2 element, on the Periodic Table, with 88 protons in the nucleus.
About Radium
- Radium has the chemical formula Ra.
- The most stable isotope of Radium has 138 neutrons in its nucleus giving it an atomic mass of 226.
- Radium is the most reactive alkali earth metal.
- Radium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Radium reacts strongly with water to produce Hydrogen gas and Radium Hydroxide and strongly with acid to produce Radium salts.
- Radium is a solid at standard temperature and pressure.
- An atom of Radium has only 2 electrons in its outer shell.
- Radium ions have lost two electrons to become positively charged.