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Byju's Answer

Standard X

Chemistry

Introduction

Isobars diffe...

Question

Isobars differ in____.

Number of nucleons

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Atomic number

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Atomic mass

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Valence electrons

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Solution

The correct option is B
Atomic number

Isobars have the same number of nucleons but differ in number of protons. Thus, their atomic numbers will be different.

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Similar questions

Define the following terms :

(a) Atomic number

(b) Mass number

(d) Valence shell

Q. The atomic species A and B have different number of protons but the same number of nucleons. On the other hand, the atomic species X and Y have the same number of protons but different number of nucleons. Which pair is an example of isobars ? Why ?

Multiple Choice Questions

(a) The outermost shell of an atom is known as

(i) valency

(ii) valence electrons

(iii) nucleus

(iv) valence shell

(b) The number of valence electrons present in magnesium is

(i) two

(ii) three

(iii) four

(iv) five

(i) proton

(ii) neutron

(iii) electron

(iv) nucleon

(d) If the atomic number of an atom is 17 and mass number is 35 then number of neutrons will be

(i) 35

(ii) 17

(iii) 18

(iv) 52

(e) The number of electrons in an atom is equal to the number of

(i) protons in a neutral atom

(ii) neutrons in a neutral atom

(iii) nucleons in a neutral atom

(iv) none of the above

(f) The sum of number of protons and number of neutrons present in the nucleus of an atom is called its

(i) mass number

(ii) atomic number

(iii) number of electrons

(iv) all of the above

Statement 1: Isobars have same chemical and physical properties.
Statement 2: Isobars are the atoms with equal number of nucleons.

Q. Assertion: The sum of protons and neutrons is always different in isobars.

Reason: Isobars are atoms of different elements having same mass number but different atomic number.

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Isobars differ in____.

The correct option is B Atomic number Isobars have the same number of nucleons but differ in number of protons. Thus, their atomic numbers will be different.

The correct option is B
Atomic number

Isobars have the same number of nucleons but differ in number of protons. Thus, their atomic numbers will be different.