Structure of an Atom
Trending Questions
If Avogadro's number is 6×1023, then the number of protons, neutrons and electrons in 14 g of 6C14 are respectively:
48×1023, 36×1023, 48×1021
48×1023, 48×1023, 36×1021
36×1023, 48×1023, 36×1023
36×1023, 36×1023, 36×1021
Discovery of the nucleus of an atom was due to the experiment carried out by
Bohr
Mosley
Rutherford
Thomson
Explain in brief -the Goldstein experiment which led to the discovery of the proton and Rutherfords experiment which led to the discovery of the atomic nucleus.
If an atom A has mass number 'x' and atomic number 'y' ( yAx ) and it forms an ion by losing an electron. What can we say about the mass number of the ion?
Mass number will be greater than x
Mass number will be lesser than x
Mass number will be equal to x
Mass number varies randomly
15. Name the scientists who discovered the following.
(a) Atoms
According to Dalton's atomic theory, matter consists of indivisible particles called atoms.
True
False
Why did Rutherford select a gold foil in his a-ray scattering experiment ?
Rutherford’s experiment on scattering of α - particles showed for the first time that the atom has
- neutron
- proton
- electron
- nucleus
Who coined the word atamos"?
Dalton
Kanada
Leucippus
Democritus