Difference between revisions of "Beryllium"
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[[Beryllium]] is a [[Group 2]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 4. | [[Beryllium]] is a [[Group 2]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 4. | ||
===About Beryllium=== | ===About Beryllium=== | ||
| − | : [[Beryllium]] has the [[Chemical | + | : [[Beryllium]] has the [[Chemical Symbol|chemical symbol]] [[Beryllium|Be]]. |
: [[Beryllium]] as 4 [[proton]]s and 5 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 4 and an [[Relative Atomic Mass|atomic mass]] of 9. | : [[Beryllium]] as 4 [[proton]]s and 5 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 4 and an [[Relative Atomic Mass|atomic mass]] of 9. | ||
: [[Beryllium]] is the least [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]]. | : [[Beryllium]] is the least [[Reactivity|reactive]] [[Alkali Earth Metal|alkali earth metal]]. | ||
Revision as of 17:45, 31 March 2019
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Beryllium is a Group 2 element, on the Periodic Table, with an atomic number of 4.
About Beryllium
- Beryllium has the chemical symbol Be.
- Beryllium as 4 protons and 5 neutrons in its nucleus giving it an Atomic Number of 4 and an atomic mass of 9.
- Beryllium is the least reactive alkali earth metal.
- Beryllium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Beryllium reacts strongly with steam to produce Hydrogen gas and Beryllium Hydroxide and reacts strongly with acids to produce a Beryllium salt.
- Lithium is a solid at room temperature.
- An atom of Beryllium has only 2 electrons in its outer shell.
- Beryllium ions have lost 2 electrons to become positively charged.
Key Stage 4
Meaning
Beryllium is a Group 2 element, on the Periodic Table, with 4 protons in the nucleus.
About Beryllium
- Beryllium has the chemical formula Be.
- The most stable isotope of Beryllium has 5 neutrons in its nucleus giving it an atomic mass of 9.
- Beryllium is the least reactive alkali earth metal.
- Beryllium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Beryllium reacts strongly with steam to produce Hydrogen gas and Beryllium Hydroxide and reacts strongly with acids to produce a Beryllium salt.
- Beryllium is a solid at standard temperature and pressure.
- An atom of Beryllium has only 2 electrons in its outer shell.
- Beryllium ions have lost two electrons to become positively charged.
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| Beryllium always has 4 protons. The most stable isotope has 5 neutrons. | |