Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEAtomic Size, ZeffMedium2 minQB
ChemistryMediummultiple choice
In which of the following pairs, the first atom is larger than the second ?
Options:(select one or more)
Answer:
A, B, C
Solution:
Down a group → size increases (more shells)
Across a period → size decreases (more nuclear pull)
(A) Br vs Cl → Br is below Cl → Br bigger
(B) Na vs Mg → same period, Na left → Na bigger
(C) Sr vs Ca → Sr below Ca → Sr bigger
(D) N vs P → P below N → P bigger
Answer: (A), (B), (C)
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Atomic Size, Zeff
⏱ 2mℹ️ Source: QB
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