Chemistry · Periodic Classification of Elements
तत्वों के वर्गीकरण से संबंधित 'अष्टक नियम' का प्रतिपादन किसने किया था?
- 1दिमित्री मेंडलीफ ने
- 2जॉन न्यूलैंड्स ने✓
- 3जोहान वोल्फगैंग डोबेरेनर ने
- 4जीन-बैप्टिस्ट डूमा ने
सही उत्तर देखें
जॉन न्यूलैंड्स ने
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