Chemistry · Periodic Classification of Elements
न्यूलैंड्स का अष्टक नियम केवल किस तत्व तक लागू था?
- 1मैग्नीशियम (Mg)
- 2सोडियम (Na)
- 3पोटेशियम (K)
- 4कैल्शियम (Ca)✓
सही उत्तर देखें
कैल्शियम (Ca)
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