Chemistry
Grade-9
Easy
Question
How many electrons does a copper atom have?
- 63
- 29
- 92
- 34
Hint:
Generally in an elements are neutral with equal number of proton and electron.
The correct answer is: 29
- Elements are represented in the form AXZ, A is atomic mass and Z is atomic number.
- Atomic mass = number of proton + number of neutron. Atomic number = number of protons.
- Generally in an elements are neutral with equal number of proton and electron.
- Number of electrons in copper atom is 29.
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