a little more?

Question

12. Which of the following electronic configurations is not allowed by the Pauli Principle?
a)1 s2 2 s1 2 p1
b)1 s2 2 s1 2 p5
c)1 s2 2 s1 2 p7
d)1 s2 2 s1 2 p6 3 s1




14. Which of the following is wrong?
a)Through sp2 and sp3 hybridizations a carbon atom can make three or four bonds with its neighbors, forming graphite and diamond, respectively.
b)Electrons in molecular bonds do not obey the Pauli Principle.
c)In a two dimensional periodic lattice there can only be 2, 3, 4 or 6-fold symmetries but not 5-fold symmetries.
d)Chemical properties of an element are determined by the distribution of electrons in the highest occupied energy level. The electrons in this shell are the outermost electrons of the atom.

Answer 1

I am not sure I understand your notation You can have a max of 2 electrons in a s orbital and 6 in a p orbital. n=1 has only s and n=2 has s and p.
14 b is wrong

Answer 2

Little Women