Question

Which has more atoms100 gm of sodium or

100 gm of iron. (3M)​

Answer 1

Answer:

the answer is 100 of iron

Answer 2

Given,

Atomic mass of Na = 23 u

Atomic mass of Fe = 56 u

Then, gram atomic mass of Na = 23 g

Now, 23 g of Na contains = 6.022x10²³g number of atoms

Thus, 100 g of Na contains = 6.022x10²³/(23 x 100 number of atoms)

100 g of Na contains = 2.6182 x 10²⁴ number of atoms

Then, gram atomic mass of Fe = 56 g

Now, 56 g of Fe contains = 6.022 x 10²³g number of atoms

Thus, 100 g of Fe contains = 6.022 x 10²³ / (56 x 100 number of atoms)

100 g of Fe contains = 1.0753 x 10²³ number of atoms.

Therefore, 100 grams of sodium contains more number of atoms than 100 grams of iron.

hope it will help you.

please mark it as brainliest.