Periodic Table Flashcards

1
Q

How are the elements arranged today?

A

By their atomic number.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How were the elements in the periodic table used to be arranged?

A

Before the discovery of protons neutrons and electrons the elements were ordered by their atomic mass.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly