Scientists

Question 1

Thomson

Answer 1

Writing contributed to the early spread of daltons atomic theory

Question 2

Milikan

Answer 2

Got Nobel prize in 1923 for measurement of elementary electric charge and his work on the photoelectric effect

Question 3

Rutherford

Answer 3

discovered the nuclear structure of the atom, discovered alpha and beta rays

Question 4

Becquerel

Answer 4

first person to discover the evidence of radioactivity received 1903 Nobel prize

Question 5

Curie

Answer 5

conducted pioneering research on radioactivity received 1903 Nobel prize

Question 6

Pauli exclusion principle

Answer 6

no two electrons can have exactly the same set of quantum numbers

Question 7

Hunds rule

Answer 7

When filling degenerate orbitals, the lowest energy is attained b maximizing electrons with the same spin

Question 8

Mendeleev and Meyer

Answer 8

first people to develop the periodic table, organized based on similarity in chemical and physical properties

Question 9

Moseley

Answer 9

established that each element has a unique atomic number which added more order to the periodic table