Difference between revisions of "Rubidium"
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[[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], 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=== | ||
| + | ====Molecular Structure==== | ||
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | : [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | ||
| + | : [[Rubidium]] [[atom]]s join together in large numbers to form a giant [[metal]] [[molecule]]. | ||
| + | ====Atomic Structure==== | ||
: [[Rubidium]] has 37 [[proton]]s and 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 37 and an [[Relative Atomic Mass|atomic mass]] of 85. | : [[Rubidium]] has 37 [[proton]]s and 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 37 and an [[Relative Atomic Mass|atomic mass]] of 85. | ||
| + | : An [[atom]] of [[Rubidium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]]. | ||
| + | ====Properties==== | ||
: [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]]. | : [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]]. | ||
: [[Rubidium]] 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]]. | : [[Rubidium]] 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]]. | ||
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: [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]]. | : [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]]. | ||
: [[Rubidium]] is a [[solid]] at [[STP|room temperature]]. | : [[Rubidium]] is a [[solid]] at [[STP|room temperature]]. | ||
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
[[Rubidium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], 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=== | ||
| + | ====Molecular Structure==== | ||
: [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | : [[Rubidium]] has the [[Chemical Formula|chemical formula]] [[Rubidium|Rb]]. | ||
| + | : [[Rubidium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]]. | ||
| + | ====Atomic Structure==== | ||
: The most [[Stable Isotope|stable isotope]] of [[Rubidium]] has 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 85. | : The most [[Stable Isotope|stable isotope]] of [[Rubidium]] has 48 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 85. | ||
| + | : An [[atom]] of [[Rubidium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]]. | ||
| + | : [[Rubidium]] [[ion]]s have lost an [[electron]] to become [[Positive Charged|positively charged]]. | ||
| + | ====Properties==== | ||
: [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]]. | : [[Rubidium]] is a more [[Reactivity|reactive]] [[Alkali Metal|alkali metal]] than [[Potassium]] but less [[Reactivity|reactive]] than [[Caesium]]. | ||
: [[Rubidium]] 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]]. | : [[Rubidium]] 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]]. | ||
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: [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]]. | : [[Rubidium]] [[Chemical Reaction|reacts]] explosively with [[water]] to produce [[Hydrogen]] [[gas]] and [[Rubidium Hydroxide]]. | ||
: [[Rubidium]] is a [[solid]] at [[STP|standard temperature and pressure]] with a [[Melting Point|melting point]] of 39.3 [[Degrees Celsius|°C]]. | : [[Rubidium]] is a [[solid]] at [[STP|standard temperature and pressure]] with a [[Melting Point|melting point]] of 39.3 [[Degrees Celsius|°C]]. | ||
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Revision as of 20:03, 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
Molecular Structure
- Rubidium has the chemical formula Rb.
- Rubidium atoms join together in large numbers to form a giant metal molecule.
Atomic Structure
- Rubidium has 37 protons and 48 neutrons in its nucleus giving it an Atomic Number of 37 and an atomic mass of 85.
- An atom of Rubidium has only 1 electron in its outer shell.
Properties
- 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.
Key Stage 4
Meaning
Rubidium is a Group 1 element, on the Periodic Table, with 37 protons in the nucleus.
About Rubidium
Molecular Structure
- Rubidium has the chemical formula Rb.
- Rubidium atoms join together in a giant metallic structure.
Atomic Structure
- The most stable isotope of Rubidium has 48 neutrons in its nucleus giving it an atomic mass of 85.
- An atom of Rubidium has only 1 electron in its outer shell.
- Rubidium ions have lost an electron to become positively charged.
Properties
- 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.