Question

how can a atom have mass......? In our book it is written that mass is amount of matter in an substance and since atom is made up of protons, nuetrons, and electrons and these are elementary entities, they should not have any matter in them so it means that these elementary entities must be massless and if protons, nuetrons, electrons are massless i.e the constituent particles of an atom are massless, the atom itself should be massless too. Please answer this question I know that the answer might get longer that's why I am giving you more points so that you don't hesitate in giving long answers........... please answer this question​

Answer 1

Answer:

atomic mass is defined as the number of protons and neutrons in an atom , where each proton and neutrons has a mass of 1 amu . for elements such as beryllium or fluorine that only have one naturally occurring isotopes , the atomic mass is equal to the atomic weight .

Answer 2

Explanation:

your answer is:

see these elementary entities doesn't have mass because it is created by god.they were created such as if these elementary entities are helping an atom to gain or loss weight,then how can they have mass themselves.If they have the mass themselves,then how can they help other atoms or molecules to gain or loss mass?

do you understood the nature of these elementary entities?

i have tried my best.

choice is up to yours.

best of luck, friend