Use these statements about valence electrons to answer the question.

1.all valence electrons are used to form bonds with other atoms or ions.
2.bonding electrons are represented by a single dot in an electron dot diagram.
3.when two electrons occupy the same valence orbital of an atom, they form a lone pair of electrons.
4.the last digit of a group number represents the number of valence electrons in the representative elements.

the true statements are

select one:
a. 1, 2, and 3
b. 1, 2, and 4
c. 1, 3, and 4
d. 2, 3, and 4