दिइएका इलेक्ट्रोन विन्यासमध्ये संयुज्यता 2 हुने तत्त्वको इलेक्ट्रोन विन्यास कुन हो ? Which of the following electronic configurations is the…
SEE Class 10 Science · 2082 · Solved Question with Answer
दिइएका इलेक्ट्रोन विन्यासमध्ये संयुज्यता 2 हुने तत्त्वको इलेक्ट्रोन विन्यास कुन हो ?
Which of the following electronic configurations is the electronic configuration of the element with valency 2?
(i) 1s², 2s² 2p²
(ii) 1s², 2s² 2p⁶, 3s²
(iii) 1s², 2s² 2p⁶, 3s² 3p²
(iv) 1s², 2s² 2p⁶, 3s² 3p⁶