Textbook Question
(a) What are 'valence electrons'?

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(a) What are 'valence electrons'?
For each element, indicate the number of valence electrons, core electrons, and unpaired electrons in the ground state: a. nitrogen
What is the maximum number of electrons in an atom that can have the following quantum numbers? a. n = 3, ml = -2; b. n = 4, l = 3; c. n = 5, l = 3, ml = 2; d. n = 4, l = 1, ml = 0.
For each element, indicate the number of valence electrons, core electrons, and unpaired electrons in the ground state: c. chlorine
(b) What are 'core electrons'?