Isotopes, Isobars and Atomic Structure Quiz

Question 1

What is the main difference between Isotopes and Isobars?

Accepted Answer

Isotopes have same protons, different neutrons; Isobars have same mass number, different protons

Answer

Isotopes have same neutrons, different protons

Answer

Both have the same protons and neutrons

Answer

Isobars have the same number of neutrons

Question 2

Carbon-12 and Carbon-14 belong to which category?

Accepted Answer

Isotopes

Answer

Isobars

Answer

Isotones

Answer

Isoelectronic

Question 3

Argon-40 and Potassium-40 belong to which category?

Accepted Answer

Isobars

Answer

Isoelectronic

Answer

Isotopes

Answer

Isotones

Question 4

Which option is a correct example of isotopes?

Accepted Answer

Hydrogen-1 and Hydrogen-3

Answer

Nitrogen-14 and Carbon-14

Answer

Chlorine-35 and Argon-40

Answer

Sodium-23 and Calcium-40

Question 5

Which option is a correct example of isobars?

Accepted Answer

Iodine-131 and Xenon-131

Answer

Carbon-12 and Carbon-14

Answer

Sulfur-32 and Chlorine-32

Answer

Oxygen-16 and Nitrogen-16

Question 6

Why do isotopic atoms behave differently for a specific element?

Accepted Answer

Different number of neutrons

Answer

Different number of electrons

Answer

Different number of protons

Answer

Different atomic number

Question 7

What is the similarity between isobars?

Accepted Answer

Same mass number

Answer

Same number of neutrons

Answer

Same atomic number

Answer

Same number of protons

Question 8

Which atoms are isotopes of C-14?

Accepted Answer

C-12 and C-13

Answer

C-40 and C-50

Answer

B-14 and Be-14

Answer

N-14 and O-14

Question 9

Which property remains the same in isotopes?

Accepted Answer

Atomic number (Z) and chemical properties

Answer

Electron number and radioactivity

Answer

Mass number (A) and nuclear properties

Answer

Neutron number and stability

Question 10

Which property differs in isobars?

Accepted Answer

Atomic number (Z) and element identity

Answer

Sum of neutrons and protons

Answer

Total number of nuclear particles

Answer

Mass number (A)

Isotopes, Isobars and Atomic Structure

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