EXAM 3

Question 1

metalloid

Answer 1

physical properties of a metal, chemical properties of a non-metal, preferred for individual elements

Question 2

Insulator

Answer 2

non-metal

Question 3

semi-metal

Answer 3

preferred for compounds

Question 4

Paramagnetic

Answer 4

At least 1 unpaired electron, attracted to external field

Question 5

Diamagnetic

Answer 5

All electrons paired, repelled by external field

Question 6

Atomic radius trends

Answer 6

Across: smaller, down: larger, cations: smaller than parent, anions: larger than parent, isoelectronic: smallest has most protons

Question 7

Ionization energy

Answer 7

Energy required to remove an electron, the more electrons removed, the more energy required

Question 8

Ionization trend

Answer 8

Across: increase, down: decrease

Question 9

What forms basic solution in water

Answer 9

metal oxide

Question 10

what forms acidic solution in water

Answer 10

nonmetal oxide

Question 11

Endothermic electron affinities

Answer 11

full electron shells and half filled d subshells

Question 12

AX2

Answer 12

2 electron groups, linear, linear shape, 180 degrees

Question 13

AXE

Answer 13

2 electron groups, linear, linear shape, angle N/A

Question 14

AX3

Answer 14

3 electron groups, trigonal planar, trigonal planar shape, 120 °

Question 15

AX2E

Answer 15

3 electron groups, trigonal planar electron structure, bent shape, < 120°

Question 16

AXE2

Answer 16

3 electron groups, trigonal planar, linear shape, angle N/A

Question 17

AX4

Answer 17

4 electron groups, tetrahedral, tetrahedral shape, 109.5°

Question 18

AX3E

Answer 18

4 electron groups, tetrahedral, trigonal pyramidal shape, < 109.5°

Question 19

AX2E2

Answer 19

4 electron groups, tetrahedral, bent shape, < 109.5°

Question 20

AXE3

Answer 20

4 electron groups, tetrahedral, linear shape, angle N/A

Question 21

AX5

Answer 21

5 electron groups, trigonal bipyramidal, trigonal bipyramidal shape, 90° 120° 180°

Question 22

AX4E

Answer 22

5 electron groups, trigonal bipyramidal, see-saw shape, 90 120 180

Question 23

AX3E2

Answer 23

5 electron groups, trigonal bipyramidal, t-shape, 90 180

Question 24

AX2E3

Answer 24

5 electron groups, trigonal bipyramidal, linear shape, 180°

Question 25

AX5E

Answer 25

6 electron groups, octahedral, square pyramid shape, 90°

Question 26

AX4E2

Answer 26

6 electron groups, octahedral, square planar shape, 90°

Question 27

Polarity vectors

Answer 27

Points to more electronegative atom, with negative delta sign and positive delta sign on other one

Question 28

Ionic bonds

Answer 28

Due to TRANSFER of VE

Question 29

Covalent bond

Answer 29

Due to SHARING of VE

Question 30

Lewis structures

Answer 30

(6N + 2) - Total VEs