Families or ____ of elements are similar in their number of valence electrons

asked Jan 6, 2020 208k views

3 votes

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6 votes

Answer:

groups

Step-by-step explanation:

Resa answered Jan 8, 2020

by Resa

5.8k points

5 votes

Answer:

groups

Step-by-step explanation:

vertical sections are called groups

Eliavs answered Jan 10, 2020

6.4k points

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