Chemistry
Name three fundamental particles of an atom. Give their symbol with charge on each particle.
Answer
The three fundamental particles of an atom are:
- Electrons — An electron is negatively charged particle denoted by the symbol -1e0.
- Protons — A proton is positively charged particle denoted by the symbol +1p1.
- Neutrons — A neutron is neutral charged particle denoted by symbol 0n1.
Related Questions
Name the following :
(a) The subatomic particle with negative charge and negligible mass.
(b) Protons and neutrons present in the nucleus.
(c) The electrons present in the outermost shell.
(d) Arrangement of electrons in the shells of an atom.
(e) The number of protons present in the nucleus of an atom.
(f) The sum of the number of protons and neutrons of an atom.
(g) Atoms of same element with same atomic number but a different mass number.
(h) The smallest unit of an element which takes part in a chemical reaction.
(i) The particle which is not present in an atom of hydrogen.
Define the following terms:
(a) Atomic number
(b) Mass number
(c) Nucleons
(d) Valence shell
Which fundamental particle is present in anode rays ? Why anode rays are also called as canal rays.
What are cathode rays ? Which fundamental particle is present in these rays ?