GENERAL KNOWLEDGE

Detailed explanation-1: -The nucleus is a small, dense region at the center of the atom. It consists of positive protons and neutral neutrons, so it has an overall positive charge. The nucleus is just a tiny part of the atom, but it contains virtually all of the atom’s mass.

Detailed explanation-2: -Rutherford’s gold foil experiment showed that atoms have a small, dense, positively charged nucleus; the positively charged particles within the nucleus are called protons.

Detailed explanation-3: -The nucleus (plural, nuclei) is a positively charged region at the center of the atom. It consists of two types of subatomic particles packed tightly together. The particles are protons, which have a positive electric charge, and neutrons, which are neutral in electric charge.

Detailed explanation-4: -Rutherford proposed that these electrons orbit a positive nucleus. In subsequent experiments, he found that there is a smaller positively charged particle in the nucleus, called a proton.

Detailed explanation-5: -The nucleus, with its four protons and five neutrons, is surrounded by a cloud of electrons. Credit: https://www.sciencephoto.com/media/2075/view. In 1911, Ernest Rutherford discovered that at the core of every atom is a nucleus.