This this statement incorrect or why explain why the sentence, rubbing your hands together creates energy, is an incorrect statement.

See the explanation below

Explanation:

According to law of conservation of energy, energy can neither be created nor destroyed but can however be converted from one form to another.

Rubbing the hands against one another does not create energy. Rather it creates friction between the two surfaces. Work is done to overcome the friction between the two surfaces and some of the energy ends up being converted to heat.

Hence, energy is not created by the action but rather converted from one form to the other.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.