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The first 20 element of the …

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The first 20 element of the periodic table

Posted by Babu Lal 4 years, 5 months ago

CBSE > Class 09 > Science

2 answers

Sahaj Khandelwal 4 years, 5 months ago

Hydrogen, helium, lithium, beralium,boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium,aluminum, silicon, phosphorus, sulphur, chlorine, argon, potassium, calcium

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Arpana Bharti 4 years, 5 months ago

Hydrogen. Helium . lithium .beralium boron carbon nitrogen oxygen flurine neon sodium magnesium alluminium silicon phasporus. Sulphur chlorine argon potassium calcium 1to20line by line

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Posted by Samir Chakma 1 month, 1 week ago

CBSE > Class 09 > Science

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If one mole of carbon atoms weighs 12 grams, what is the mass (in grams) of 1 atom of carbon?

Posted by Anmol Kumar 2 months, 2 weeks ago

CBSE > Class 09 > Science

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Posted by Abhi Sandhu 2 months, 1 week ago

CBSE > Class 09 > Science