Which of the following does not have eight valence electrons?

Consider the following species when answering the following questions: (i) BCl3 (ii) CCl4 (iii) TeCl4 (iv) XeF4 (v) SF6 Which of the molecules has a see-saw shape? 

The hybridizations of nitrogen in NF3 and NH3 are ________ and ________, respectively.

The molecular geometry of the PF3 molecule is ________, and this molecule is ________ (polar or nonpolar).

There are ________ σ bonds and ________ π bonds in H3C-CH2-CHCH-CH2-CCH. (This question is asking for numerical answers.)

Consider the following species when answering the following questions: (i) BCl3 (ii) CCl4 (iii) TeCl4 (iv) XeF4 (v) SF6 Which of the molecules has a see-saw shape? 

Which of the following does not have eight valence electrons?

What is the maximum number of double bonds that a hydrogen atom can form?

The hybridizations of nitrogen in NF3 and NH3 are ________ and ________, respectively.

For a given arrangement of ions, the lattice energy increases as ionic radius ________ and as ionic charge ________.