CUET · PHYSICS · PYQ PAPER 2023
Choose the correct statments from below:
A. Nuclides with same atomic number but different number of neutrons are called Isotopes.
B. Nuclides with same mass number are known as Isotopes.
C. Nuclides with same number of neutrons are called Isobars.
D. More than 99.9% mass of atom is concentrated in nucleus.
Choose the correct answer from the options given below:
- A A and C Only
- B A, B and C Only
- C A and D Only
- D D
Answer & Solution
Correct Answer
(C) A and D Only
Step-by-step Solution
Detailed explanation
A (Correct): Isotopes are defined as atoms of the same element (same atomic number) that have different numbers of neutrons. D (Correct): Because protons and neutrons are nearly 2,000 times heavier than electrons, the nucleus contains more than 99.9% of an atom's total mass. C)…
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