प्र2 सही विकल्प चुनकर रिक्त स्थानों की पूर्ति कीजिए
(i) सोडियम का प्रतीक
है। (yers
Tara
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Answer:
'na' hai sodium ka प्रतीक yeh hai answer
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Answer: Na
Explanation:
According to Mendleev periodic table, mandleev give sodium atomic number 11 with symbol 'Na'.
sodium is a group 1 element it is highly reactive and can be cut by knife.
Star:
star is made up of helium gases.
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