Quiz -1

What is the name given to the positively charged sub-atomic particle discovered by E.Goldstein in 1886?

• Electron

• Proton

• Neutron

• Photon

What did J.J.Thomson identity in the atom?

• Proton

• Neutron

• Electron

• Photon

Who proposed the model of an atom similar to a christmas pudding?

• Dalton

• Rutherford

• Thomson

• Bohr

What is the overall charge of an atom according to Thomson's model?

• Positive

• Negative

• Neutral

• Non of the above

Which of the following terms is used to describe the orbits of electrons in Bohr's model of the atom ?

• Energy shells

• Continuous orbits

• Rondom orbits

• None of the above

Which sub atomic particle has no charge?

• Proton

• Electon

• Neutron

• Meson

Which of the following atoms does not contain neutrons in its nucleus

• Hydrgen

• Carbon

• Oxygen

• Helium

What is the maximum number of electrons in the third energy level or M- Shell?

• 2

• 8

• 18

• 32

Valency of aluminium is

• 2

• 4

• 1

• 3

What is the symbol of carbon ?

• Ca

• C

• Cr

• Cl