Question -
What is the mass of one atom of neon if its gram atomic mass is 20 grams?
Options:
A .  2.65×10−23 grams
B .  3.32×10−23 grams
C .  5.32×10−23 grams
D .  4.32×10−23 grams
Answer: Option B : B 1 mole of an element contains 6.022×1023 atoms. 1 mole of acompound contains6.022×1023 molecules. Neon is monoatomic in nature. It is given that the gram atomic mass of Neon is 20 g So, 6.022×1023 atoms of Neon weigh = 20 grams The massof one atom = 206.022×1023 = 3.32×10−23 g
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