The elements with atomic numbers 101 and 104 belong to, respectively : (A) Actinoids and Group 4 (B) — JEE Mains Chemistry Past Papers Chemistry Question
Question
The elements with atomic numbers 101 and 104 belong to, respectively : (A) Actinoids and Group 4 (B) Group 11 and Group 4 (C) Group 6 and Actinoids (D) Actinoids and Group 6
Answer: A
💡 Solution & Explanation
89Ac 103Lr Belongs to actinoids series and they all belongs to 3rd group. So atomic no. 101 element is actinoids and atomic number 104 element belongs to 4th group.
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