Subatomic particle carrying a negative charge - ️️Electron

Number of electrons in the outermost shell of an atom with 15 electrons - ️️5

Innermost shell of an atom - ️️Holds 2 electrons

Electrically neutral atom with atomic number 8 and mass number 17 has - ️️8 protons

What predicts the element to which an atom belongs? - ️️Total number of protons

Four most common elements comprising 96% of the body's mass - ️️Oxygen,

nitrogen, hydrogen, carbon

Atom of iron with...