Question

How did Mendeleev come up with the first periodic table of the elements? (1 point)

A He determined the mass of atoms of each element.
B He estimated the number of electrons in atoms of each element.
C He arranged the elements by different properties to find a pattern.
D He organized the elements by their atomic number.​

Answer 1

1. He arrange the elements by different properties to find a pattern!

Here are the rest!

2.. atoms are indivisible

3. He determined the amount of charge on an electron

4. Like charges repel and opposite charges attract

5.Alpha particle deflection

Hope this helps the ballers!