AP Chemistry Unit 2

A bond in which there is unequal sharing of electrons is 

• ionic

• polar covalent

• nonpolar covalent

• metallic

If two covalently bonded atoms are identical, the bond is identified as 

• nonpolar covalent

• ionic

• polar covalent 

• coordinate covalent

Tags

NGSS.HS-PS1-1

Explain why ionization energy decreases as you go down a group.

• Outer electrons are further away from the nucleus you go down a group

• Electrons feel less pull from the nucleus as you go down a group

• Electrons are easier to remove as you go down a group

• All of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The graph above shows the ionization energy values as the elements are arranged on the periodic table. Which conclusion cannot be drawn from the graph?

• The ionization energy drops significantly as you move down a group because the valence electrons are in a shell further from the nucleus.

• The ionization energy increases gradually as you move right across a period because the valence electrons are in a shell further from the nucleus.

• The ionization energy increases gradually as you move right across a period because you are adding more protons.

• The ionization energy increases when the valence electrons are more attracted to the nucleus.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

Tags

NGSS.HS-PS1-1

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have more protons.

• the atoms have less electrons.

Tags

NGSS.HS-PS1-1

When writing Lewis Structures, only __________ electrons are used.

• Inner shell

• Core 

• Valence

• Stable

Each line in a Lewis Structure represents __________ electron(s).

• 3

• 2

• 1

• 4

A molecule of water has what shape?

• Linear

• Tetrahedral

• Bent

• Triangular

Atoms of H only form _________ bonds.

• Double

• Single

• Multiple

• Triple