Chemistry Chapter 8 Test Review

In covalent compounds, how do 2 atoms become stable?

• sharing electrons

• one atom donates its electrons to the other

• sharing protons

• one atom donates its protons to the other

In ionic compounds, how do 2 atoms become stable?

• sharing electrons

• one atom donates its electrons to the other

• sharing protons

• one atom donates its protons to the other

What group of elements are not very reactive?

• Halogens

• Noble Gases

• Transition Metals

• Alkaline Earth Metals

Why are noble gases not very reactive?

• They have 8 valence electrons

• They do not have a full valence

• They are the 8th group

• They attended anger management classes

How many different TYPES of elements are in a DIATOMIC molecule?

• 1

• 2

• 3

• 4

How can you break a chemical bond?

• Put more energy into it

• Cutting it with a scalpel

• Taking energy out

• Spinning it

T/F: Noble gases all have the same electron dot structure

• True

• False

How does a sigma bond form?

• An orbital of one atom overlaps with another atom

• The orbitals of two atoms repel each other

• The orbitals of one atom is destroyed

• It just appears

In the diatomic molecule O₂, the atoms of oxygen are joined together by a

• single bond

• double bond

• triple bond

• ionic bond

Covalent compounds have (high or low) boiling and melting points?

• high

• low