Which of the following elements will tend to form an anion?
a. aluminum
b. beryllium
c. copper
d. silicon
e. all of the above

Metals usually form cations because they like to lose electrons to get a full octet.
Nonmetals usually form anions because they like to gain electrons to get a full octet.

Aluminum will lose 3 electrons to form a cation
Beryllium will lose 2 electrons to form a cation
Copper can lose either 1 or 2 electrons to form a cation.
Silicon can gain 4 electrons to form an anion.

Your correct answer is silicon.

Do u have the n? or maybe the m?

The correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."