Difference between revisions of "Rubidium"
(3 intermediate revisions by the same user not shown) | |||
Line 4: | Line 4: | ||
==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
− | [[File: | + | [[File:RubidiumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Rubidium]].]] |
[[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==== | ====Molecular Structure==== | ||
− | : [[Rubidium]] has the [[Chemical | + | : [[Rubidium]] has the [[Chemical Symbol|chemical symbol]] [[Rubidium|Rb]]. |
: [[Rubidium]] [[atom]]s join together in large numbers to form a giant [[metal]] [[molecule]]. | : [[Rubidium]] [[atom]]s join together in large numbers to form a giant [[metal]] [[molecule]]. | ||
====Atomic Structure==== | ====Atomic Structure==== | ||
Line 21: | Line 21: | ||
==Key Stage 4== | ==Key Stage 4== | ||
+ | [[File:RbKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Rubidium]].]] | ||
===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==== | ====Molecular Structure==== | ||
− | : [[Rubidium]] has the [[Chemical | + | : [[Rubidium]] has the [[Chemical Symbol|chemical symbol]] [[Rubidium|Rb]]. |
: [[Rubidium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]]. | : [[Rubidium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]]. | ||
====Atomic 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]]. | : An [[atom]] of [[Rubidium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]]. | ||
− | : [[Rubidium]] [[ion]]s have lost an [[electron]] to become [[Positive | + | : [[Rubidium]] [[ion]]s have lost an [[electron]] to become [[Positive Charge|positively charged]]. |
====Properties==== | ====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]]. |
Latest revision as of 11:18, 5 March 2020
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 symbol 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 symbol 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.