Question

Name the subatomic particles present in an atom. What is their relative mass and charge?
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Answer 1

Answer:

Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons. Neutrons are neutrally-charged.

Proton +1.60 x 10-19 C 1 amu

Electron -1.60 x 10-19 C 0 amu ~(1/1840 amu)

Neutron neutral 1 amu

Answer 2

Answer:

SUB ATOMIC PARTICLE           CHARGE                     RELATIVE MASS

ELECTRON                                -1.6X10^-19C                       1/1840amu

PROTON                                    +1.6X10^-19C                           1amu  

NEUTRON                                    NEUTRAL                             1amu    

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