Explain how you can use an atom's mass number and atomic particle number to determine the number of protons, neutrons, and electrons in an atom. Please help, this was due two days ago and I legit have no idea. Thanks!

The number of protons in the nucleus of the atom is equal to the atomic number . The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.