SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the chemicalsymbol for nitrogen gas, N2, what does the “2”represent?
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two nitrogen compounds
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two nitrogen atoms
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two types of nitrogen gas
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two nitrogen symbols
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Explanation:
Detailed explanation-1: -According to the octet rule, nitrogen atoms need to bond three times. The N2 molecule is diatomic, meaning that two atoms of the same element are connected in a pair.
Detailed explanation-2: -The maximum number of electrons that can be filled in an orbit (shell) can be found by using the formula 2n2; where ‘n’ stands for an orbit’s serial number.
Detailed explanation-3: -N2 refers to a molecule of nitrogen gas. Two atoms of nitrogen chemically bond to give a molecule of nitrogen gas. 2N2 refers to two molecules of nitrogen gas.
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