Which listed element has six valence electrons-OxygenLithiumBromineArgonArsenic

The correct option is A OxygenOxygen #160;is 8 in the periodical table. First #160;electron #160;shell can hold 2 #160;electrons; second, 8. Therefore, ...

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Standard IX

Chemistry

Carbon

Which listed ...

Question

Which listed element has six valence electrons?

Oxygen

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Lithium

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Bromine

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Argon

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Arsenic

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Solution

The correct option is A Oxygen
Oxygen is 8 in the periodical table. First electron shell can hold 2 electrons; second, 8. Therefore, out of 8 electrons, 2 go to the first shell and 6 to the second; valence electrons are the ones on the outermost shell.

Suggest Corrections

Which listed element has six valence electrons?

The correct option is A OxygenOxygen is 8 in the periodical table. First electron shell can hold 2 electrons; second, 8. Therefore, out of 8 electrons, 2 go to the first shell and 6 to the second; valence electrons are the ones on the outermost shell.

The correct option is A Oxygen
Oxygen is 8 in the periodical table. First electron shell can hold 2 electrons; second, 8. Therefore, out of 8 electrons, 2 go to the first shell and 6 to the second; valence electrons are the ones on the outermost shell.