Ch. 7-8 Test Review

Which atom has a single covalent bond?

• CO

• Cl₂

• N2

• CO₂

Tags

NGSS.MS-PS1-1

A covalent bond:

• Bond formed in the sharing of pairs of electrons

• Bond formed in the sharing of one electron

• Occurs in metals and non-metals

• metals only

a coordinate covalent bond

• occurs in ozone only

• where each atom shares some of the electrons

• a covalent bond in which one of the atoms provides all the shared electrons

• is in double bonds only

A double covalent bond

• is the sharing of one [pair of electrons

• is the sharing of two pairs of electrons

• is the sharing of three pairs of electrons

• is the sharing of as many electrons as it wants

This atom will

• lose 1 electron

• gain 1 electron

• lose 7 electrons

• gain 7 electrons

• do nothing

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Anions have a ________ charge.

• positve

• negative

• neutral

Cations have a __________ charge.

• positive

• negative

• neutral

Which family of elements does not form ions or bond with other elements?

• alkali metals

• halogens

• alkaline earth metals

• rare earth elements

• noble gases

The octet rule states that atoms are more stable when they

• have more protons than electrons

• have more electrons than protons

• have a full outer shell

• have a partial outer shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What charge will this atom have when it satisfies the octet rule? Assume it is neutral in this diagram.

• +5

• -5

• +3

• -3

• 8

Tags

NGSS.HS-PS1-1