Define the word energy

Energy is like when you are ready to do something

Explanation:

and you don't feel tired

energy is when you are able to work and

you are active.

Like you are energized to do something you try your best.

Hope this helps :)

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.