EVERYDAY SCIENCE

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CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the chemicalsymbol for nitrogen gas, N2, what does the “2”represent?
A
two nitrogen compounds
B
two nitrogen atoms
C
two types of nitrogen gas
D
two nitrogen symbols
Explanation: 

Detailed explanation-1: -Explanation: The chemical formula of Nitrogen is N but Nitrogen exists in a molecule of two ions hence the chemical symbol of Nitrogen gas is written as N2 .

Detailed explanation-2: -3. N2 is a stable molecule, while 2N is nascent nitrogen with no stability.

Detailed explanation-3: -The formula to find the maximum number of electrons that can be accommodated in a shell = 2n2 where ‘n’ is the number of the given shell from the nucleus. For example, the maximum number of electrons that can be filled in the: First shell (K-Shell) = 2(1)2 = 2 electrons.

Detailed explanation-4: -2n2 represents 2 molecules of nitrogen.

Detailed explanation-5: -Molecular nitrogen (N2) is a very common chemical compound in which two nitrogen atoms are tightly bound together. Molecular nitrogen is a colorless, odorless, tasteless, and inert gas at normal temperatures and pressures.

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