EASYMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryAtomic StructureIntro
[NEET 2020] In ¹⁷⁵₇₁Lu, the number of protons, neutrons and electrons respectively are
0.71, 104 and 71
1.104, 71 and 71
2.71, 71 and 104
3.175, 104 and 71
Explanation
Atomic number Z = 71 = protons = electrons (neutral atom). Mass number A = 175. Neutrons = A − Z = 175 − 71 = 104.
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