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1. নিম্নের species গুলোর মধ্যে কি মিল আছে ? ²⁰N, ²⁴Mg²⁺, ¹⁹F⁻
- A. Isoelectronic with each other
- B. Isoelectronic with each other
- C. Isoelectronic with each other
- D. Isoelectronic with each other
Answer: Option A
Explanation:
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