Science, asked by ugyendorji252649, 7 months ago

The modern periodic table has seven horizontal rows called…………………………. and eighteen verticals called …………………..​

Answers

Answered by Vanisher
2

Answer:

The Modern Periodic table has 18 vertical columns known as groups and 7 horizontal rows known as periods.

Answered by Anonymous
22

Answer:

groups and periods

Explanation:

see the periodic table

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