Which is the element with atomic no. 7? Write about it.
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Element no 7 is nitrogen.
It's average atomic mass is 14.0067.
Its symbol is N
It's atomic mass is 12
Properties-78% of air. Protein, muscles, DNA, fertiliser, TNT explosive. Nitrogen is a gas.
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It's average atomic mass is 14.0067.
Its symbol is N
It's atomic mass is 12
Properties-78% of air. Protein, muscles, DNA, fertiliser, TNT explosive. Nitrogen is a gas.
Plz mark brainliest
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