Question

Which has more no of atoms 100gm of sodium of gm. Of aluminum cat man Na23. A126

Answer 1

Please mark it as brainliest.

Answer: 100 gram of sodium has more number of atoms than aluminium.

Explanation:

No. of atoms = Mass in gram * avagadro no./ Molar mass

[ Avagadro number =6.02*10^23 ]

No. of atoms ( sodium ) = 100* 6.02*10^23/23

No. Of atoms of sodium = 26.17 *10^23

By similar way we can find out no. Of atoms of aluminium

No. Of atoms of aluminium = 100*6.02*10^23/27

No.Of atoms of aluminium = 22*10^23

Therefore, 100 gram of sodium has more number of atoms than 100 gram of aluminium.

Hope it helps..