Question

The periodic table is organized by

A)
atomie mass:
B)
atomic size,
C)
atomic number
D)
atomic periodicity

Answer 1

i believe it's A-atomic mass

Step-by-step explanation:

hope this helps u, sorry if it doesn't.

Answer 2

The periodic table is organized by atomic number. If you look closely, the atomic number is usually at the top of the element square. It goes in counting order horizontally.

Hope this helps :)