Is Potassium a Neutral Atom or Isotope?
Explain how you know if its an Isotope of Neutral Atom.

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Contained in chromosomes which are located in the nucleus of the cell.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Reducing agents  oxidized by the reaction