Groups & Periods Flashcards

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1
Q

number of valence electrons of an element in Group 15

A

5

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2
Q

number of electron shells of an element in Period 4

A

4

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3
Q

electrons found in the outermost shell of an atom

A

valence electrons

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4
Q

number of valence electrons of an element in Group 14

A

4

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5
Q

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

A

helium, oganesson

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6
Q

Group # with elements having 6 valence electrons

A

16

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7
Q

number of electron shells of an element in Period 2

A

2

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8
Q

reason helium is in Group 18

A

full valence shell

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9
Q

number of valence shells of an element in Period 4

A

1

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10
Q

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

A

rubidium, xenon

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11
Q

Group # with elements having 3 valence electrons

A

13

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12
Q

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

A

lithium, neon

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13
Q

number of electron shells of an element in Period 1

A

1

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14
Q

Group # including the element helium

A

18

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15
Q

number of electron shells of an element in Period 6

A

6

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16
Q

number of valence electrons of an element in Group 1

A

1

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17
Q

number of valence shells of an element in Period 1

A

1

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18
Q

number of electron shells of an element in Period 3

A

3

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19
Q

Group # with elements having 8 valence electrons

A

18

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20
Q

number of valence electrons held by shell #1

A

2

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21
Q

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

A

fluorine, tennessine

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22
Q

Group # with elements having 1 valence electron

A

1

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23
Q

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

A

sodium,

24
Q

number of valence shells of an element in Period 6

A

1

25
Q

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

A

carbon, flerovium

26
Q

number of valence electrons of an element in Group 18

A

8

27
Q

Group # with elements having 4 valence electrons

A

14

28
Q

number of valence electrons held by shell #2

A

8

29
Q

number of valence electrons of an element in Group 2

A

2

30
Q

number of valence electrons held by shell #4

A

8

31
Q

number of electron shells of an element in Period 7

A

7

32
Q

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

A

potassium, krypton

33
Q

number of valence shells of an element in Period 7

A

1

34
Q

how is helium similar to the elements in Group 18

A

all have a full valence shell

35
Q

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

A

boron, nihonium

36
Q

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

A

hydrogen, helium

37
Q

number of valence electrons of an element in Group 17

A

7

38
Q

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

A

caesium, radon

39
Q

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

A

francium, oganesson

40
Q

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

A

nitrogen, moscovium

41
Q

number of valence shells of an element in Period 2

A

1

42
Q

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

A

beryllium, radium

43
Q

number of valence electrons held by shell #5

A

8

44
Q

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

A

2

45
Q

number of valence shells of an element in Period 3

A

1

46
Q

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

A

hydrogen, francium

47
Q

number of valence shells of an element in Period 5

A

1

48
Q

number of valence electrons held by shell #3

A

8

49
Q

Group # with elements having 5 valence electrons

A

15

50
Q

number of electron shells of an element in Period 5

A

5

51
Q

number of valence electrons held by shell #6

A

8

52
Q

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

A

oxygen, livermorium

53
Q

Group # with elements having 7 valence electrons

A

17

54
Q

the outermost shell of an atom

A

valence shell

55
Q

number of valence electrons held by shell #7

A

8

56
Q

number of valence electrons of an element in Group 13

A

3

57
Q

number of valence electrons of an element in Group 16

A

6