Where are valence electrons located in an atom?

Valence electrons are the electrons in the outermost shell, or energy level, of an atom.

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume