Difference between revisions of "Calculating the Numbers of Protons, Neutrons and Electrons"
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | Calculting the numbers of protons, neutrons, and electrons can be done from information about the [[Atomic Number]], [[Relative Atomic | + | Calculting the numbers of protons, neutrons, and electrons can be done from information about the [[Atomic Number]], [[Relative Atomic Mass]] and [[Relative Atomic Charge]] of a [[particle]]. |
===About Calculating the Numbers of Protons, Neutrons and Electrons=== | ===About Calculating the Numbers of Protons, Neutrons and Electrons=== | ||
Revision as of 13:15, 26 November 2018
Key Stage 4
Meaning
Calculting the numbers of protons, neutrons, and electrons can be done from information about the Atomic Number, Relative Atomic Mass and Relative Atomic Charge of a particle.
About Calculating the Numbers of Protons, Neutrons and Electrons
- The number of protons in an atom or ion is given by the Atomic Number.
- The number of neutrons can be found by subtracting the Atomic Number from the Relative Atomic Mass.
- The number of electron in an ion can be found using the Atomic Number (which is the same as the Relative Atomic Charge of the nucleus) and subtracting the charge of the ion.