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Flashcards in the periodic table Deck (20)
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1
Q

the vertical columns on the periodic table are called ______

A

groups

2
Q

the horizontal rows on the periodic table are called ____

A

periods

3
Q

most of the elements on the periodic table are classified as ________

A

metals

4
Q

the elements that touch the zigzag line are classified as ________

A

metalloids

5
Q

the elements in the far upper right corner are classified as ________

A

nonmetals

6
Q

which is the first group?

A

alkali metals

7
Q

how many valence electrons do alkali metals have?

A

one

8
Q

which is the second group?

A

alkaline earth metals

9
Q

how many valence electrons do alkaline earth metals have?

A

two

10
Q

which is the third through twelfth group?

A

transition metals

11
Q

which is the seventeenth group?

A

halogens

12
Q

how many valence electrons do halogens have?

A

7

13
Q

which is the eighteenth group?

A

noble gases

14
Q

how many valence electrons do noble gases have?

A

8

15
Q

how many valence electrons does the thirteenth group have?

A

3

16
Q

how many valence electrons does the fourteenth group have?

A

4

17
Q

how many valence electrons does the fifteenth group have?

A

5

18
Q

how many valence electrons does the sixteenth group have?

A

6

19
Q

what is the first period at the bottom called?

A

lanthanides

20
Q

what is the second period at the bottom called?

A

actinides