The periodic table .
a. is arranged by atomic mass
b. was developed by early alchemists
...
Chemistry, 26.10.2021 08:50 4300402428
The periodic table .
a. is arranged by atomic mass
b. was developed by early alchemists
c. is arranged by the number of protons
d. is divided into vertical periods and horizontal groups
It's either a or c I'm pretty sure but i don't know which one
Answers: 1
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