Chemistry
Grade-10
Easy
Question
An element attains the stable configurations, when _______ electrons are there in the valence shell.
- 6
- 8
- 4
- 2
Hint:
Electronic configuration of atoms follows the octet rule.
The correct answer is: 8
- Atoms have different shells of electrons, each shell contains a set number of maximum electrons.
- The electronic configuration is done in accordance with the octet rule which states a max number of 8 electrons can be in one shell after the first shell.
- Atoms are most stable when their outer valence shell is full with eight electrons.
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