Chemistry · Periodic Classification
निम्नलिखित तत्वों में से किसका परमाणु त्रिज्या (atomic radius) सबसे अधिक है?
- 1Al (एल्युमिनियम)
- 2Na (सोडियम)
- 3Ca (कैल्शियम)
- 4K (पोटेशियम)✓
सही उत्तर देखें
K (पोटेशियम)
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