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Nitrogen-15 has 7 protons and 8 neutrons, which means it also has 7 electrons to maintain a neutral charge.
Nitrogen has five electrons in its outermost shell.
3 The electron configuration for nitrogen is 1s22s22p3.
Nitrogen has 2s^3 2p^3 valence electrons so the answer would be 3
There are 10 core electrons in nitrogen, which are the electrons in the inner energy levels of the atom. This can be calculated by subtracting the number of valence electrons (5 for nitrogen) from the total number of electrons in the atom (15 for nitrogen).
Nitrogen has 2 core electrons. Core electrons are those that are found in the inner energy levels and are not involved in chemical bonding.