Physics, asked by devitaborkar, 5 months ago

The modern periodic table contains .............
periods and ................ columns.
a) 7, 18 b) 5,17 c) 3,11 d) 8,14

Answers

Answered by pari0826

1

Answer:

a) 7 periods and 18 groups

Answered by Zephyr05

1

Answer:

The answer should be a) 7 /18

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