6 NEUTRON POINTS

How did James Chadwick discovered the neutron?

6 NEUTRON POINTS

How many elements are on the periodic table?

6 NEUTRON POINTS

Henry Moseley concluded that there were ______ (a number) unknown elements between aluminum and gold.

6 NEUTRON POINTS

What did William Crookes point out in vacuum and magnetic fields?

5 NEUTRON POINTS

Which of Einstein’s equations did Robert Millikan verify through experiments?

5 NEUTRON POINTS

Henry Moseley demonstrated that the major properties of an element are determined by the __________________, not the atomic weight.