NEET2020Chemistry-Atomic Structure
NEET 2020 Chemistry Isotopes MCQ Question
Type: MCQ-numerical-Easy-Class 11
The number of protons, neutrons and electrons in ¹⁷⁵₇₁Lu, respectively, are:
A
71, 71 and 104
B
175, 104 and 71
C
71, 104 and 71
D
104, 71 and 71
Correct Answer
Option C
Detailed Explanation
Lutetium (Lu) has an atomic number of 71, so it has 71 protons and electrons. The number of neutrons is 175 - 71 = 104.
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