What best explains the type of energy present in natural gas? it is chemical energy, which is a type of kinetic energy. it is chemical energy, which is a type of potential correct answer it is mechanical energy, which is a type of kinetic energy. it is mechanical energy, which is a type of potential energy. temperature is a measure of the amount of heat in a substance. true talse answer took the test already

oh it is true if thats what you are asking

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.