PERIODIC TABLE

Question 1

group 1A
i. valence electron
ii. common valence

Answer 1

i. valence electron: 1
ii. common valence: +1

Question 2

elements of group 2B
common valence of group 2B

Answer 2

Volatile metals (2+)
Zn - zinc
Cd - cadmium
Hg - mercury

Question 3

Phosphorus

Answer 3

31 g/mol

Question 4

elements of group 1B
common valence of group 1B

Answer 4

Coinage Metals (+1)
Cu - copper
Ag - silver
Au - gold

Question 5

Carbon

Answer 5

12 g/mol

Question 6

elements of group 3A

Answer 6

boron family (icosagens)
B - boron
Al - aluminum
Ga - gallium
In - indium
Tl - thallium
Nh - nihonium

Question 7

group 3A
i. valence electron
ii. common valence

Answer 7

i. valence electron: 3
ii. common valence: +3

Question 8

Calcium

Answer 8

40 g/mol

Question 9

elements of group 4B
common valence of group 4B

Answer 9

Titanium subgroup (+4)
Ti - Titanium
Zr - zirconium
Hf - hafnium

Question 10

group 2A
i. valence electron
ii. common valence

Answer 10

i. valence electron : 2
ii. common valence: +2

Question 11

elements of group 1A

Answer 11

alkali metals
H - hydrogen
Li - lithium
Na - sodium
K - potassium
Rb - rubidium
Cs - cesium
Fr - francium

Question 12

group 5A
i. valence electron
ii. common valence

Answer 12

i. valence electron: 5
ii. common valence: -3

Question 13

elements of group 8a

Answer 13

Stable/Inert/Noble Gases
He - helium
Ne - neon
Ar - argon
Kr - krypton
Xe - xenon
Rn - radon

Question 14

elements of group 4A

Answer 14

carbon family (crystallogens)
C - carbon
Si - silicon
Ge - germanium
Sn - tin
Pb - Lead

Question 15

elements of group 7a

Answer 15

Halogens
F - fluorine
Cl - chlorine
Br - bromine
I - iodine
At - astatine
Ts - tennessine

Question 16

elements of group 6B
common valence of group 6B

Answer 16

Chromium subgroup (+6)
Cr - chromium
Mo - molybdenum
W - tungsten

Question 17

elements of group 5B
common valence of group 5B

Answer 17

Vanadium subgroup (+5)
V - vanadium
Nb - niobium
Ta - tantanum

Question 18

elements of group 5a

Answer 18

nitrogen family (pnictogens)
N - nitrogen
P - phosphorus
As - arsenic
Sb - antimony
Bi - bismuth

Question 19

elements of group 2A

Answer 19

alkaline earth metals
Be - beryllium
Mg - magnesium
Ca - calcium
Sr - strontium
Ba - barium
Ra - radium

Question 20

Sodium (Na)

Answer 20

23 g/mol

Question 21

elements of group 3B
common valence of group 3B

Answer 21

Scandium subgroup (+3)
Sc - scandium
Y - yttrium
La - lanthanum
Lu - lutetium
Ac - actinium
Lr - lawrencium

Question 22

Chlorine

Answer 22

35.5 g/mol

Question 23

Potassium (K)

Answer 23

39 g/mol

Question 24

group 8A
i. valence electron
ii. common valence

Answer 24

i. valence electron: 8
ii. common valence: 0; no charge; no valence

Question 25

Magnesium

Answer 25

24 g/mol

Question 26

Sulfur

Answer 26

32 g/mol

Question 27

Hydrogne

Answer 27

1 g/mol

Question 28

Oxygen

Answer 28

16 g/mol

Question 29

group 6A i. valence electron ii. common valence

Answer 29

i. valence electron: 6 ii. common valence: -2

Question 31

Nitrogen

Answer 31

14 g/mol

Question 32

Lithium

Answer 32

7 g/mol

Question 33

Bromine

Answer 33

80 g/mol

Question 34

group 7A i. valence electron ii. common valence

Answer 34

i. valence electron: 7 ii. common valence: -1

Question 35

group 4A i. valence electron ii. common valence

Answer 35

i. valence electron: 4 ii. common valence: +4; -4

Question 36

elements of group 8B common valence of group 8B i. first/iron triad ii. second/light triad iii. third/heavy triad

Answer 36

i. first/iron triad (+2; +3) Fe - iron Co - cobalt Ni - nickel ii. second/light triad (+3) Ru - ruthenium Rh - rhodium Pd - palladium iii. third/heavy triad (+4) Os - osmium Ir - iridium Pt - platinum

Question 37

Aluminum

Answer 37

27 g/mol

Question 38

elements of group 7B common valence of group 6B

Answer 38

Manganese subgroup (+6) Mn - manganese Tc - technetium Re - rhenium Bh - bohrium

Question 39

Iodine

Answer 39

127 g/mol

Question 40

elements of group 6a

Answer 40

oxygen family (chalcogens) O - oxygen S - sulfur Se - selenium Te - tellurium Po - polonium