Atomic Structure and the Periodic Table — Test

Question 1

Which best explains why ionization energy tends to decrease from the top to the bottom of a group?

Revolt · Accepted Answer

Electrons get farther from the nucleus.

Question 2

A fusion reaction takes place between carbon and another element. Neutrons are released, and a different element is formed. The different element is

Revolt · Accepted Answer

heavier than helium.

Question 3

When electrons are removed from the outermost shell of a calcium atom, the atom becomes

Revolt · Accepted Answer

a cation that has a smaller radius than the atom.

Question 4

Which type of reaction does this diagram represent?

Revolt · Accepted Answer

nuclear fusion because atomic nuclei combine to form a heavier nucleus

Question 5

What is the best explanation for why a particle is striking point X?

Revolt · Accepted Answer

When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Atomic Structure and the Periodic Table — Test Answers