I need help with numbers 1-6! Please help me!!

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

What is the atomic number of an atom that has 6 protons