MCQ Questions | Class 9 Science Chapter 4 | Structure of the Atom with Answers

MCQ | Structure of the Atom Class 9 | Part-1

Check the below NCERT MCQ Questions for Class 9 Science Chapter 4 Structure of the Atom with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Structure of the Atom Class 9 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Science Class 9

NCERT Solutions Class 9 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Science
Chapter:	4 ( Part-1 )
Chapters Name:	Structure of the Atom
Medium:	English

Ncert Solutions for Class 9 Science | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Structure of the Atom | Class 9 Science | NCERT Solutions

Q1.	Electron is represented as ……….
	A.El
	B.E
	C.e
	D.none of the above

Ans: e

Q2.	Proton is represented as………….
	A.Pr
	B.E
	C.P
	D.None of the above

Ans: P

Q3.	Ions containing positive charge called…………
	A.Positive charge
	B.Positive ion
	C.Proton
	D.Photon

Ans: Proton

Q4.	Ions containing negative charge called………….
	A.Electron
	B.Negative particle
	C.Negative ion
	D.Negative charge

Ans: Electron

Q5.	Atoms is composed of…………….and………….
	A.Neutron
	B.Proton , electron
	C.Positron, proton
	D.Neutron , electron

Ans: Proton , electron

Q6.	Which experiment designed by Rutherford?
	A.Atom is looks like watermelon
	B.Moving alpha particles fall on thin magnesium foil
	C.Moving alpha particles fall on thin gold foil
	D.Moving alpha particles fall on thin silver foil

Ans: Moving alpha particles fall on thin gold foil

Q7.	The revolution of the electron in a circular orbit is not expected is not expected to be stable.
	A.It is drawback of Dalton
	B.It is drawback Rutherford’s
	C.It is drawback Mendeleev’s
	D.None of the above

Ans: It is drawback Rutherford’s

Q8.	The orbit or shells are called………………
	A.Energy level
	B.Subshells
	C.Parameters
	D.K shell

Ans: Energy level

Q9.	First Orbits or shells represent by the letter
	A.K
	B.P
	C.T
	D.M

Ans: K

Q10.	Second Orbits or shells represent by the letter
	A.K
	B.L
	C.T
	D.M

Ans: L

Q11.	Uncharged particle present in the atom called……….
	A.Positron
	B.Neutron
	C.Electron
	D.None of the above

Ans: Neutron

Q12.	………….. are present in atoms having no any charge
	A.Positron
	B.Neutron
	C.Electron
	D.None of the above

Ans: Neutron

Q13.	Molecular mass means sum of …………………. and ……………
	A.Proton, neutron
	B.Proton , electron
	C.Positron, proton
	D.Photon, neutron

Ans: Proton, neutron

Q14.	When alpha-particles are sent through a thin metal foil, most of them go straight through the foil because
	A. alpha-particles are positively charged
	B. alpha-particles are much smaller than electrons
	C. alpha-particles move with low velocity
	D. most part of the atom is empty

Ans: most part of the atom is empty

Q15.	The number of electrons in an atom of Fluorine is 9. Its electronic configuration is _______.
	A. 8, 1
	B. 7, 2
	C. 2, 7
	D. 1, 8

Ans: 2, 7

Q16.	N shell can have a maximum of _______ electrons.
	A.32
	B.2
	C.18
	D.8

Ans: 32

Q17.	Rutherford’s scattering experiment falls for very small scattering angles because
	A. the impact parameter between the a-particle source and the nucleus of target is very large as compared to the size of nucleus.
	B. whole nuclear charge of the target atom is not screened by its electrons at all
	C. the velocity of a-particles is large
	D. the gold foil is thin

Ans: whole nuclear charge of the target atom is not screened by its electrons at all

Q18.	Nucleous consist of:
	A. Proton and electron
	B. Proton and neutron
	C. Neutron and electron
	D. Only neutron

Ans: Proton and neutron

Q19.	Which of the following is the correct electronic configuration for magnesium?
	A. 2, 8, 1
	B. 2, 8, 3
	C. 2, 8, 4
	D. 2, 8, 2

Ans: 2, 8, 2

Q20.	The electronic configuration of an atom with atomic number 19 is:
	A. 2, 8, 8, 1
	B. 1, 2, 2, 8
	C. 2, 8, 9
	D. 2, 10, 7

Ans: 2, 8, 8, 1

CBSE Solutions | Ncert Solutions Science Class 9

NCERT Solutions | MCQ Class 9 Science

NCERT | Class 9 Science Solutions

MCQ Questions for Class 9 Science in English Medium

MCQ Questions | Class 9 Science Chapter 4

MCQ Questions | Class 9 Science Chapter 4 | Structure of the Atom with Answers

MCQ | Structure of the Atom Class 9 | Part-1

Objective Question | NCERT Science Class 9

Ncert Solutions for Class 9 Science | Objective Type Questions

Structure of the Atom | Class 9 Science | NCERT Solutions

CBSE Solutions | Ncert Solutions Science Class 9

NCERT Solutions | MCQ Class 9 Science

NCERT | Class 9 Science Solutions

MCQ Questions for Class 9 Science in English Medium

MCQ Questions for Class 9 Science Chemistry with Answers

MCQ Questions for Class 9 Science Biology with Answers

MCQ Questions for Class 9 Science Physics with Answers

MCQ Questions for Class 9 Science Biology with Answers

NCERT SOLUTIONS

Post a Comment

Post a Comment

Contact Form