Respuesta :

The No of proton=20

The No of electron=20

The No of neutron=20

How to calculate protons, electrons & neutrons?

The electron exists as a subatomic particle whose electric charge stands negative one elementary charge. Electrons belong to the first generation of the lepton particle family and exist naturally thought to be elementary particles because they have no learned components or substructure.

The neutron exists as a subatomic particle, symbol n or n⁰, which includes a neutral charge, and a mass slightly greater than that of a proton. Protons and neutrons comprise the nuclei of atoms.

No. of protons= Atomic Number of Calcium

                       = 20

No. of electrons= no of protons

                         = 20

No. of neutrons= Mass number-Atomic number

For Calcium-40, which is an isotope of calcium,

                            mass no.=40

                            atomic no= 20

So no. of neutrons= 40-20= 20

proton=20

electron=20

neutron=20

To learn more about electrons & neutrons, refer:

https://brainly.com/question/11911253

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