Groups & Periods

Question 1

number of valence electrons of an element in Group 15

Answer 1

5

Question 2

number of electron shells of an element in Period 4

Answer 2

4

Question 3

electrons found in the outermost shell of an atom

Answer 3

valence electrons

Question 4

number of valence electrons of an element in Group 14

Answer 4

4

Question 5

use a periodic table; name the first and last elements in Group 18

Answer 5

helium, oganesson

Question 6

Group # with elements having 6 valence electrons

Answer 6

16

Question 7

number of electron shells of an element in Period 2

Answer 7

2

Question 8

reason helium is in Group 18

Answer 8

full valence shell

Question 9

number of valence shells of an element in Period 4

Answer 9

1

Question 10

use a periodic table; name the first and last elements in Period 5

Answer 10

rubidium, xenon

Question 11

Group # with elements having 3 valence electrons

Answer 11

13

Question 12

use a periodic table; name the first and last elements in Period 2

Answer 12

lithium, neon

Question 13

number of electron shells of an element in Period 1

Answer 13

1

Question 14

Group # including the element helium

Answer 14

18

Question 15

number of electron shells of an element in Period 6

Answer 15

6

Question 16

number of valence electrons of an element in Group 1

Answer 16

1

Question 17

number of valence shells of an element in Period 1

Answer 17

1

Question 18

number of electron shells of an element in Period 3

Answer 18

3

Question 19

Group # with elements having 8 valence electrons

Answer 19

18

Question 20

number of valence electrons held by shell #1

Answer 20

2

Question 21

use a periodic table; name the first and last elements in Group 17

Answer 21

fluorine, tennessine

Question 22

Group # with elements having 1 valence electron

Answer 22

1

Question 23

use a periodic table; name the first and last elements in Period 3

Answer 23

sodium,

Question 24

number of valence shells of an element in Period 6

Answer 24

1

Question 25

use a periodic table; name the first and last elements in Group 14

Answer 25

carbon, flerovium

Question 26

number of valence electrons of an element in Group 18

Answer 26

8

Question 27

Group # with elements having 4 valence electrons

Answer 27

14

Question 28

number of valence electrons held by shell #2

Answer 28

8

Question 29

number of valence electrons of an element in Group 2

Answer 29

2

Question 30

number of valence electrons held by shell #4

Answer 30

8

Question 31

number of electron shells of an element in Period 7

Answer 31

7

Question 32

use a periodic table; name the first and last elements in Period 4

Answer 32

potassium, krypton

Question 33

number of valence shells of an element in Period 7

Answer 33

1

Question 34

how is helium similar to the elements in Group 18

Answer 34

all have a full valence shell

Question 35

use a periodic table; name the first and last elements in Group 13

Answer 35

boron, nihonium

Question 36

use a periodic table; name the first and last elements in Period 1

Answer 36

hydrogen, helium

Question 37

number of valence electrons of an element in Group 17

Answer 37

7

Question 38

use a periodic table; name the first and last elements in Period 6

Answer 38

caesium, radon

Question 39

use a periodic table; name the first and last elements in Period 7

Answer 39

francium, oganesson

Question 40

use a periodic table; name the first and last elements in Group 15

Answer 40

nitrogen, moscovium

Question 41

number of valence shells of an element in Period 2

Answer 41

1

Question 42

use a periodic table; name the first and last elements in Group 2

Answer 42

beryllium, radium

Question 43

number of valence electrons held by shell #5

Answer 43

8

Question 44

Group # with elements having 2 valence electrons (exception is helium)

Answer 44

2

Question 45

number of valence shells of an element in Period 3

Answer 45

1

Question 46

use a periodic table; name the first and last elements in Group 1

Answer 46

hydrogen, francium

Question 47

number of valence shells of an element in Period 5

Answer 47

1

Question 48

number of valence electrons held by shell #3

Answer 48

8

Question 49

Group # with elements having 5 valence electrons

Answer 49

15

Question 50

number of electron shells of an element in Period 5

Answer 50

5

Question 51

number of valence electrons held by shell #6

Answer 51

8

Question 52

use a periodic table; name the first and last elements in Group 16

Answer 52

oxygen, livermorium

Question 53

Group # with elements having 7 valence electrons

Answer 53

17

Question 54

the outermost shell of an atom

Answer 54

valence shell

Question 55

number of valence electrons held by shell #7

Answer 55

8

Question 56

number of valence electrons of an element in Group 13

Answer 56

3

Question 57

number of valence electrons of an element in Group 16

Answer 57

6