दोनों तत्वों की इलेक्ट्रॉनिक विन्यास लिखिए
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Answered by
17
Step-by-step explanation:
H= 1s1
He=1s2
mark as brilliant and take thanks for all question
Answered by
0
Step-by-step explanation:
H= 1s1
He=1s2
mark as brilliant
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