Ramu73
contestada

A. On the Periodic Table of Elements, columns are called ______________________; all of these
elements
have the same number of ___________________________.
B. On the Periodic Table of Elements, rows are called _____________________; all of these have the same
number of __________________________.

Respuesta :

myahb20

Answer:

A. On the peridic table of elemets, columns are called groups; all of these elements have the same number of electrons in the outer orbital.

B. On the periodic table of elements, rows are called periods; all of these have the same number of atomic orbitals.

I think this is right sorry if i'm wrong!
1. Groups
2. They have the same number of electrons in their outer shell
3. Periods
4. They have the same number of shells

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