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2. How many vertical columns or families are found on the Periodic Table of Elements?
A. 16
B.17
C. 18
D. 19

please answer this ASAP PO PLEASE NEED NOW​


Sagot :

Answer:

B.18

Explanation:

18 Verticals Columns

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column.

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