EVERYDAY SCIENCE

Detailed explanation-1: -Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. These are held together by the strongest known fundamental force, called the strong force. The nucleus makes up much less than . 01% of the volume of the atom, but typically contains more than 99.9% of the mass of the atom.

Detailed explanation-2: -The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral.

Detailed explanation-3: -An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.

Detailed explanation-4: -So because the nucleus has both protons and neutrons, the strong force can hold all of them together. Without neutrons, the protons in a nucleus would fly apart since there would only be repulsion forces due to the positive charges not wanting to be near each other.

Detailed explanation-5: -Key Concepts. Atoms are made of extremely tiny particles called protons, neutrons, and electrons. Protons and neutrons are in the center of the atom, making up the nucleus. Electrons surround the nucleus.