# MCQ on The nuclear atom

MCQ on The nuclear atom:this post is all about a multiple choice question on the topic of the atomic nucleus. It’s is based on the different models that scientists have used to understand the structure and properties of the atomic nucleus. The models you’ll see in the options are the Rutherford model, the Thomson model, and the Bohr model. These models have been really important in helping us understand how atoms work, but remember that science is always evolving and new models might come up in the future.

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Q. What is correct about Thomson’s atomic model?

A. Electrons revolve around the nucleus.

B. Electrons are positive particles which remain embedded in the atom.

C. The sphere of atom is positive.

D. None of the above

Q. What is correct about Rutherford’s atomic model?

A. Electrons revolve around the nucleus.

B. Electrons are negative particles which remain embedded in the atom.

C. The sphere of atom is positive.

D. Nucleus has protons and electrons.

Q. In what way the Rutherford’s nuclear model was different from Neils Bohr’s Model?

A. The charge of nucleus

B. The number of Nucleons

C. The number of protons

D. The electrons revolving around the nucleus in discrete orbits.

Q. Electrons are found by 2nformula in different shells where n is

A. Number of electrons

B. Number of neutrons

C. Number of shell

D. Number of Protons

Q. The speed of light is

A. 3 × 108 m s

B. 3 × 10-8 m/s

C. 0.3 × 108 m/s

D. 3 × 108 m/s

Q. Which statement/s is correct for subatomic particles of an atom?

1. Electrons have relative charge of -1 and mass 1.

2.Protons have relative mass of 1 and charge +1.

3. Neutrons have relative charge of 0 and mass 1.

A.  All three are correct.

B. Only 1 and 2 are correct.

C. 1 and 3 are correct.

D. 2 and 3 are correct.

Q. What is correct for 17 Cl35 ?

A. Cl has A= 17 and Z= 35

B. Cl has 17 protons and 17 neutrons.

C. Cl has A= 35 and Z= 17

D. Cl has A= 35.5 and Z= 17

Q. Chlorine Cl35 and Cl37 are related to each other because they have

A. same number of nucleon

B. same charge and mass

C. same number of neutrons

D. Different number of nucleons

Q. Which statement/s is/are correct for the Isotopes of Hydrogen H1  , H2  , H3

1.  H1  , H2  and  Hhave 1 proton each.

2. H3 has only 1 neutron.

3. H1  has no neutron while  H2  , H3 have one and two neutrons respectively.

A.  All three are correct.

B. Only 1 and 2 are correct.

C. 1 and 3 are correct.

D. 2 and 3 are correct.

Q. The different isotopes of the same element always have ?

1. similar chemical properties.

2.  similar physical properties.

3.  different number of nucleons.

A. I, II and III

B. I and III only

C. I and II only

D. II and III only

Q.Which are correct statements about the F ion?

1. The atomic mass of Fluorine is 9.

2. The ion contains 10 electrons.

3. The ion contains 10 neutrons.

A. I and III only

B. II and III only

C. I and II only

D. all I, II and III are correct.

Q. Chlorine has a relative atomic mass of 35.5.It has two  Isotopes of Chlorine Cl35 and Cl37 What is the % abundance of Chlorine-37 in naturally occurring boron?

A. 75%

B. 25%

C. 35.5%

D. 2.5%

Q. The two isotopes of boron, boron-10 and boron-11 have % abundance of 19 and 81 respectively. What is the relative atomic mass of boron?

A. 10

B. 10.5

C. 10.8

D. 8.10

Q. One atom of   11Na23   has

A. 23 protons.

B. 11 neutrons.

C. 12 electrons.

D. 11 protons.

Q. Identify a chemical species which contains 20 protons, 20 neutrons and 18 electrons.

A. Ne

B. Cl

C. Ca

D. K

Have you solved MCQ on The nuclear atom?