An atom has 12 protons, 11 neutrons and 12 electrons. What is the mass member of this atom?

the mass is 24

Explanation:

The atomic number is defined as the totall number of electons in the atom in its non bonded state.

Thus the number of electron is 1w, atomic number is also 12.

Mass number is defined as the number of protons + neutrons in the nucleus of an atom.

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.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)