Latest Atomic Structure General Knowledge(GK) Questions and answers

1 .

Which symbols represent atoms that are isotopes?

A)

C-14 and N-14

B)

I-131 and I-131

C)

O-16 and O-18

D)

Rn-222 and Ra-222

Correct Answer : Option (C) - O-16 and O-18

2 .

A neutron has approximately the same mass as a_____

A)

an alpha particle

B)

a beta particle

C)

an electron

D)

a proton

Correct Answer : Option (D) - a proton

3 .

A proton has approximately the same mass as____

A)

an electron

B)

a beta particle

C)

a neutron

D)

an alpha particle

Correct Answer : Option (C) - a neutron

4 .

What would be the atomic number of the element in whose atom the K and L shells are full?

A)

10

B)

12

C)

14

D)

16

Correct Answer : Option (A) - 10

5 .

Within an atom, the nucleus when compared to the extra nuclear part is

A)

smaller in volume and lighter in mass

B)

smaller in volume but heavier in mass

C)

bigger in volume and heavier in mass

D)

None of the above

Correct Answer : Option (B) - smaller in volume but heavier in mass

6 .

The isotope used to remove the brain tumours and treatment of cancer is

A)

C0-60

B)

Na-24

C)

U-235

D)

None of the above

Correct Answer : Option (A) - C0-60

7 .

The electrons present in the outermost shell are called

A)

Octate electrons

B)

Duplet electrons

C)

Valency electrons

D)

Valence electrons

Correct Answer : Option (D) - Valence electrons

8 .

The isotope deuterium of hydrogen has

A)

One electron and two neutron

B)

One neutrons and two protons

C)

One proton and one neutron

D)

No neutrons and one proton

Correct Answer : Option (C) - One proton and one neutron

9 .

Nucleus consists of two sub-particles known as?

A)

Nucleosides

B)

Nucleotides

C)

Neutrons

D)

Nucleons

Correct Answer : Option (D) - Nucleons

10 .

What is the most attractive part of nuclear energy?

A)

Is available in abundance

B)

Causes no pollution

C)

Supports countries development

D)

Has high efficiency of energy production

Correct Answer : Option (B) - Causes no pollution