Question

In modern periodic table, elements are arranged according to their
A
Atomic weight
B
Density
C
Atomic number
D
Melting point​

Answer 1

Answer:

Atomic Number

Explanation:

In modern periodic table elements are arranged on the basis of their ATOMIC NUMBER

CORRECT OPTION IS C

Answer 2

Answer:

A and c both

Explanation:

In modern periodic table, elements are arranged based on Atomic weight and Atomic number