Chemistry · Atomic Structure
निम्नलिखित में से कौन सा जोड़ा आइसोटोन (isotones) का एक उदाहरण है?
- 121H और 31H
- 24018Ar और 4020Ca
- 33517Cl और 3717Cl
- 4136C और 147N✓
सही उत्तर देखें
136C और 147N
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