Question

15*
Question -5 Name the following
1. The most highly penetrating radiation.
2. The sub atomic particles with a negligible mass.
3. The state of matter where the inter particle attraction is maximum.
Who propose the kinetic molecular theory of matter.
The Bohr's orbit of electrons.

Answer 1

A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below). Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner. 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. Electrons, which are negatively-charged, are located outside of the nucleus.