15-20 Flashcards

1
Q

Sulfur

A

16
S
32
Non-metal

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2
Q

Chlorine

A

17
Cl
35
Halogen

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3
Q

Argon

A

18
Ar
39. 48
Noble gas

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4
Q

Pottasium

A

19
K
39.09
Alkali

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5
Q

Calcium

A

20
Ca
40
Alkaline earth metals

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