Atomic Structure-I Chemistry Test Series For NEET-2020

Test Preparation on Atomic Structure-I-Chemistry Test Series For NEET-2020

1.

The nucleus of the atom consists of

1Proton and neutron
2Proton and electron
3Neutron and electron
4Proton, neutron and electron

It consists of proton and neutron and these are also known
as nucleons.

2.

Which is correct statement about proton

1Proton is nucleus of deuterium
2Proton is ionized hydrogen molecule
3Proton is ionized hydrogen atom
4Proton is α -particle

Proton is the nucleus of H - atom ( H - atom devoid of its
electron).

3.

The proton and neutron are collectively called as

1Deutron
2Positron
3Meson
4Nucleon

Nucleus consists of proton and neutron both are called as
nucleon.

4.

The discovery of neutron became very late because

1Neutrons are present in nucleus
2Neutrons are highly unstable particles
3Neutrons are chargeless
4Neutrons do not move

This is because chargeless particles do not undergo any
deflection in electric or magnetic field unlike proton and
electron.

5.

The average distance of an electron in an atom from its nucleus
is of the order of
(a) 10⁶m (b) 10^-6m
(c) 10^-10m (d) 10^-15m

1A
2B
3C
4D

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