define.....
1.matter
2.sub atomic particles
Answers
Answer:
1.) MATTER = anything which has mass and occupies space (have volume) is called matter.
2.) sub atomic particles = A component of an atom which is smaller than its size. The three types of sub atomic particles are neutron, proton and electron.
siso, I am also in 9th, I have given the definition according to my book and not from the Google, I am hoping that I must help you in any ways
Answer:
definition of sub atomic particles
In the physical sciences, subatomic particles are smaller than atoms. They can be composite particles, such as the neutron and proton; or elementary particles, which according to the standard model are not made of other particles. Particle physics and nuclear physics study these particles and how they interact.
definition of matter
Matter is the "stuff" that makes up the universe — everything that takes up space and has mass is matter. All matter is made up of atoms, which are in turn made up of protons, neutrons and electrons.