mikayla2338
contestada

What does the group number of A elements in the A/B numbering system)
tell about valence electrons?

A. The A group number tells which period the valence electrons are
in
B. The A group number tells how much mass the elements have.
C. All elements in the same A group will have the same number of
valence electrons.
D. All elements in the A group will have the same valence electrons
as the B group.

Respuesta :

DrMantisToboggan

Answer:

All elements in the same A group will have the same number of

valence electrons.

Explanation:

Group A has 1 valence electrons.

The group number of A elements in the A/B numbering system tell about valence electrons that "All elements in the same A group will have the same number of valence electrons".

So, option C is correct one.

Why all elements in a same group have same number of valence electrons?

The elements in same group have same number of valence electrons because they have same number of electrons in outermost shell (valence shell).

To learn more about valence electrons here.

https://brainly.com/question/13993867

#SPJ2