Question

Which scientist discovered that the atomic number, rather than the atomic weight, is more responsible for the properties of an element? (tragically this scientist died soon after as a soldier in wwi.) 1. millikin 2. moseley 3. st. augustine 4. rutherford 5. chadwick?

Answer 1

Answer:

• The correct option is Moseley who has discovered the atomic number.

Explanation:

• In 1913, H. Moseley discovered a new properties of an element atomic number. He observed that elements in the periodic table can be arranged better according to atomic number rather than atomic mass.
• The atomic number of any elements is always equal to numbers of electrons in it.