Question

The “Atomic Number “was invented by _________ and he is from ___________.

1. Henry Moseley, UK
2. Henry Moseley, USA
3. Dimitri Mendeleev, Russia
4. Dimitri Mendeleev, USA

Answer 1

Correct Answer - Option 1 : Henry Moseley, UK

Henry Moseley was an English Physicist and an inventor.

• He discovered the atomic number of each element.
• He uses X-ray for these discoveries.
• The relations between X-ray and the atomic number was known as Moseley’s Law.

Dimitri Mendeleev was a Russian chemist and he was known for Periodic Classification of elements