In your own perspective what is physically science all about? PLS PUT UR OWN WORDS

The masses of the objects and their densities

Fgiryhfdashnmhddvn,

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.