Difference between revisions of "Rubidium"
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===Meaning=== | ===Meaning=== | ||
[[File:RubidiumSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Rubidium]].]] | [[File:RubidiumSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Rubidium]].]] | ||
| − | [[Rubidium]] is a [[Group 1]] [[element]] with an [[Atomic Number|atomic number]] of 37. | + | [[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 37. |
===About Rubidium=== | ===About Rubidium=== | ||
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | : [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | ||
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[Rubidium]] is a [[Group 1]] [[element]] with 37 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | + | [[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 37 [[proton]]s in the [[Atomic Nucleus|nucleus]]. |
===About Rubidium=== | ===About Rubidium=== | ||
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | : [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | ||
Revision as of 14:08, 31 March 2019
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Rubidium is a Group 1 element, on the Periodic Table, with an atomic number of 37.
About Rubidium
- Rubidium has the chemical formula Rb.
- Rubidium has 37 protons and 48 neutrons in its nucleus giving it an Atomic Number of 37 and an atomic mass of 85.
- Rubidium is a more reactive alkali metal than Potassium but less reactive than Caesium.
- Rubidium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Rubidium oxidises extremely quickly in the presence of Oxygen so it must be stored in a completely sealed container.
- Rubidium reacts explosively with water to produce Hydrogen gas and Rubidium Hydroxide.
- Rubidium is a solid at room temperature.
- An atom of Rubidium has only 1 electron in its outer shell.
- Rubidium ions have lost an electron to become positively charged.
Key Stage 4
Meaning
Rubidium is a Group 1 element, on the Periodic Table, with 37 protons in the nucleus.
About Rubidium
- Rubidium has the chemical formula Rb.
- The most stable isotope of Rubidium has 48 neutrons in its nucleus giving it an atomic mass of 85.
- Rubidium is a more reactive alkali metal than Potassium but less reactive than Caesium.
- Rubidium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Rubidium oxidises extremely quickly in the presence of Oxygen so it must be stored in a completely sealed container.
- Rubidium reacts explosively with water to produce Hydrogen gas and Rubidium Hydroxide.
- Rubidium is a solid at standard temperature and pressure with a melting point of 39.3 °C.
- An atom of Rubidium has only 1 electron in its outer shell.
- Rubidium ions have lost an electron to become positively charged.