asked 177k views
3 votes
1. The modern periodic table is ordered by which of the following factors?

A. The number of electrons
B. The number of protons
C. The atomic mass
D. The elements

2 Answers

0 votes

Answer:

C

Step-by-step explanation:

answered
User TuanNguyen
by
8.4k points
2 votes
I think the answer is B because it’s the same thing as the atomic number
answered
User Antoine Mottier
by
8.0k points

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