Difference between revisions of "Promethium"
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===Meaning=== | ===Meaning=== | ||
[[Promethium]] is a [[Lanthanide]] [[metal]] [[element]], on the [[Periodic Table]], with 61 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | [[Promethium]] is a [[Lanthanide]] [[metal]] [[element]], on the [[Periodic Table]], with 61 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | ||
| − | ===About | + | ===About Promethium=== |
====Molecular Structure==== | ====Molecular Structure==== | ||
: [[Promethium]] has the [[Chemical Formula|chemical formula]] [[Promethium|Pm]]. | : [[Promethium]] has the [[Chemical Formula|chemical formula]] [[Promethium|Pm]]. | ||
Revision as of 21:12, 1 April 2019
Contents
Key Stage 2
Meaning
Promethium is a metal.
Key Stage 3
Meaning
Promethium is a Lanthanide metal element, on the Periodic Table, with an atomic number of 61.
About Promethium
Molecular Structure
- Promethium has the chemical symbol Pm.
- Promethium atoms join together in large numbers to form a giant metal molecule.
Atomic Structure
- Promethium as 61 protons and 84 neutrons in its nucleus giving it an Atomic Number of 61 and an atomic mass of 145.
- Promethium is in Period 6 of the Periodic Table because it has 6 electron shells.
Properties
- Promethium is a metal element so it is a good thermal conductor and a good electrical conductor.
- Promethium is a shiny solid at room temperature.
- Promethium is malleable.
- Promethium is sonorous.
- Promethium is ductile.
Key Stage 4
Meaning
Promethium is a Lanthanide metal element, on the Periodic Table, with 61 protons in the nucleus.
About Promethium
Molecular Structure
- Promethium has the chemical formula Pm.
- Promethium atoms join together in a giant metallic structure.
Atomic Structure
- The most stable isotope of Promethium has 84 neutrons in its nucleus giving it an atomic mass of 145.
- Promethium is in Period 6 of the Periodic Table because it has 6 electron shells.
- Promethium loses electrons to form positive metal ions.
Properties
- Promethium forms ionic bonds with non-metals.
- Promethium is a metal element so it is a good thermal conductor and a good electrical conductor.
- Promethium is a shiny solid at standard temperature and pressure and has a high melting point.
- Promethium is malleable.
- Promethium is sonorous.
- Promethium is ductile.