Chemistry_Q3 DAY 3 Reviewer

Which statement best explains the reactivity of noble gases?

• Noble gases have a lot electrons, so they are unlikely to gain more by reacting.

• Noble gases are typically unreactive since they have full outer electron shells.

• Noble gases are very reactive because they have full outer electron shells.

Which statement is TRUE about noble gas compounds?

• Only the smallest noble gases can form compounds.

• Noble gases cannot form compounds because they are unreactive.

• Only helium and neon have not formed compounds.

Which describes the state that the noble gases are found at room temperature?

• unreactive monatomic gases

• unreactive diatomic gases

• highly reactive monatomic gases

Noble gases are almost completely _____________ because they have eight valence electrons.

• inert

• reactive

• nonreactive

The reactivity of a given element is most closely related to its ___________.

• electron configuration

• density

• solubility

With which noble gas was the first noble gas compound finally formed?

• neon

• xenon

• krypton

The octet rule is based on the number of electrons in the noble gases, which are the least

reactive elements.

• TRUE

• FALSE

The atomic size is the distance from the nucleus to its outermost shell of electrons.

• TRUE

• FALSE

In Group 16, Sulfur (S) has the smallest atomic radius.

• TRUE

• FALSE

Arrange the following atoms in order of decreasing atomic radius:

Ga, As, Sn, Sb, Te

• Sn, Sb, Te, Ga, As

• Ga, As, Sn, Sb, Te