What is common to all elements in the same group on the periodic table?
a.they are all nonmetals.
b. they have the same number of valence electrons.
C. their propertoess are very different.
D.they have the same number of neutrons..

Question

queenbb · Answer

The second b is supposed to be C

queenbb · Answer

never mind i fixed it

studygurl14 · Answer

B, but I'm not positive.

Ps. this is chemistry, not math

queenbb · Answer

i thought i change it

mhchen · Answer

Studygurl is right. A group is a COLUMN in the periodic table. And each column has an increasing number of valence electrons, Helium being the exception to the right-most group.

studygurl14 · Answer

Thanks @mhchen So it is B, the same number of valance electrons