Answer:
the atoms can have different numbers of valence electrons
<h3>The answer is option A.</h3>
Step-by-step explanation:

Can be written as

Which is the same as

But

So we have
5(1) = 5
Hope this helps you
The answer is B :)
hope this helps you out
1/3 from 6 (the amount of girls with glasses) / 18 (total number of students)