Answer:
0.012× 10⁻²³ moles of iron
Explanation:
Given data:
Number of moles of iron = ?
Number of iron atoms = 0.0723 atom
Solution:
Avogadro number:
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atoms
0.0723 atom × 1 mol / 6.022 × 10²³ atoms
0.012× 10⁻²³ mol
The correct answer would be : thermosphere
I hope that this helps you !
Answer:
22
Explanation:
The atomic number indicates the amount of protons, so it would be 22
