I need the answer to this. Which of these are an atom’s valence electrons? A
the electrons closest to the nucleus.

B
the electrons farthest from the nucleus.

C
the electrons at the inner-most energy level.

D
electrons that are never involved in chemical bonding.

In the years after world war ii, which of the following caused many people from asian and african countries to migrate to europe? a. the end of the soviet union b. new economic opportunities after colonialism ended c. the religious freedom found in europe d. new laws allowing greater numbers of immigrants into european countries