Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEIntroduction, NamingMedium2 minQB
ChemistryMediummultiple choice
Which of the following option/s CORRECTLY match group number and period number for given atomic number (Z)?
Options:(select one or more)
Answer:
A, B, D
Solution:
Z = 56 (Ba) has configuration [Xe] 6s², so it belongs to Group 2, Period 6 → correct.
Z = 78 (Pt) has configuration ending in 5d⁹6s¹, so it belongs to Group 10, Period 6 → correct.
Z = 53 (I) belongs to Group 17, Period 5, not Group 7 and Period 6 → incorrect.
Z = 40 (Zr) belongs to Group 4, Period 5 → correct.
Answer: (A), (B) and (D)
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Introduction, Naming
⏱ 2mℹ️ Source: QB
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