139k views
2 votes
If elements in group 17 of the periodic table, what do they have the same of?

Atomic number
atomic mass
number of possible isotopes
or.. number of valence electrons

2 Answers

7 votes

Answer:

D: number of valence electrons.

Step-by-step explanation:

I hope this helps!

User Kishan Dhankecha
by
8.4k points
3 votes
Number of valence electrons (they all have 7 valence electrons)
User Mikita Belahlazau
by
7.7k points