Chemistry · d- and f-Block Elements
निम्नलिखित में से किस सेट में केवल संक्रमण तत्वों (transition elements) के परमाणु क्रमांक शामिल हैं?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 137, 42, 50, 64
- 221, 25, 42, 72✓
- 39, 17, 34, 38
- 421, 32, 53, 64
सही उत्तर देखें
21, 25, 42, 72
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