This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
An atom consists of electrons that revolve around nucleus...nucleus of an atom consist of protons n neutrons. Basically d mass of an atom depends on the nucleus. Protons are positively charged. Neutrons are non charged bodies or 0 charge
1 5 1
The Brainliest Answer!
The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom . The atomic nucleus was discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment . After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly developed by Dmitri Ivanenko and Werner Heisenberg.Almost all of the mass of an atom is located in the nucleus, with a very small contribution from the electron cloud. Protons and neutrons are bound together to form a nucleus by the nuclear force .
2 4 2