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For Nitrogen atom ( 14 N7 ), calculate the number of neutrons.
7
In Nitrogen atom ( 14 N 7 ) ,the number of protons =................,the number of electrons =..........
7,7
For the Nitrogen atom ( 14 N 7 ) ; the mass number =............while the atomic number =..........
14, 7
The equation 2n2 is not applied to the energy levels more than 4
Because , the atom will be un stable
The electrons fill the energy level K before L
Because , K level has the lowest energy
The atom is electrically neutral . why/
Because, Number of +ve protons = Number of -ve electrons
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