Multiple Choice Spoints A form of an element that is different than the average atomic. the mass on the periodic table is called __ Atom Proton hotope

## Step 1<br />The problem is asking for the term that describes a form of an element that has a different number of neutrons than the average atomic mass on the periodic table. The options provided are "Atom", "Proton", and "Isotope".<br /><br />## Step 2<br />An "Atom" is the smallest unit of an element that retains the properties of that element. It is not a form of an element with a different number of neutrons.<br /><br />## Step 3<br />A "Proton" is a subatomic particle found in the nucleus of an atom. It is not a form of an element with a different number of neutrons.<br /><br />## Step 4<br />An "Isotope" is a variant of a particular chemical element which differs in neutron number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.