Test 1

Question 1

If two atoms have the same atomic number but different mass number, they are called what?

Answer 1

Isotopes

Question 2

The atomic number tells you what?

Answer 2

The number of protons in an atom, so therefore it also tells the number of electrons.

Question 3

The mass number tells you what about an atom?

Answer 3

The number of protons plus the number of neutrons in the atoms nucleus.

Question 4

According to the Aufbau principle, in what order do you fill up orbitals?

Answer 4

Low energy to high energy

1s 2s 2p 3s 3p 4s 3d

Question 5

Hybridization: single bonds only =

Answer 5

sp^3 hybridization

Question 6

Hybridization: one double bond =

Answer 6

sp^2 hybridization

Question 7

Hybridization: two double bonds =

Answer 7

sp hybridization

Question 8

Hybridization: one triple bond =

Answer 8

sp hybridization

Question 9

An sp^3 hybridized carbon has _____.

Answer 9

4 bonds

Question 10

An sp^2 hybridized carbon has _____.

Answer 10

3 bonds

Question 11

An sp hybridized carbon has _____.

Answer 11

2 bonds

Question 12

CH4

Answer 12

Methane

Question 13

C2H6

Answer 13

Ethane

Question 14

Electronegativity (EN) of Carbon

Answer 14

2.5

Question 15

_________ bonds are atoms with similar EN. <2>

Answer 15

Nonpolar Covalent

Question 16

_______ bonds have a difference in EN < 2

Answer 16

Polar covalent bonds

Question 17

_______ bonds have a difference in EN > 2

Answer 17

Ionic

Question 18

sp2 orbitals are in a plane with ___ degree angles.

Answer 18

120

Trigonal planer

Question 19

sp orbitals are ____ and are ___ degrees apart on the x-axis.

Answer 19

Linear, 180

Question 20

Transition metal compounds

Answer 20

Lewis acids

Question 21

4 bonds = orbital?? = degrees?? = shape??

Answer 21

sp3, 109.5, tetrahedral