SC-20
Atoms
Lower Sec Science · Secondary 1 · Easy · Atoms
An atom of element X has 8 protons, 8 neutrons and 8 electrons.
What are the relative charge and relative mass of a proton in this atom?
What are the relative charge and relative mass of a proton in this atom?
- Charge −1, mass 1/1840
- Charge +1, mass 1
- Charge 0, mass 1
- Charge +1, mass 0
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