Advertisements
Advertisements
प्रश्न
Define: Electron
Advertisements
उत्तर
Electron = e = is subatomic particle revolving around the nucleus of an atom having
unit – ve charge, mass = 1/1840 of 1 hydrogen atom, and the number of electrons = number of protons.
APPEARS IN
संबंधित प्रश्न
What is the positive charge on the nucleus of an atom due to?
(a) What are cathode rays? What is the nature of charge on cathode rays?
(b) Explain how, cathode rays are formed from the gas taken in the discharge tube.
(c) What conclusion is obtained from the fact that all the gases from cathode rays?
How does cathode ray differ from as anode rays?
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached `""_1"p"^1, ""_0"n"^1,""_-1"e"^0`
What is the significance of the number of protons found in the atoms of different elements?
Explain in brief the experimental proof which led to the discovery of –
Protons
Represent an electron ‘e’ in term of its symbol showing the subscript and superscript value.
In response to a question, a student stated that in an atom, the number of protons is greater than the number of neutrons, which in turn is greater than the number of electrons. Do you agree with the statement? Justify your answer.
Complete the Table on the basis of information available in the symbols given below
- `""_17^35"Cl"`
- `""_6^12"C"`
- `""_35^81"Br"`
| Element | np | nn |
An atom is electrically neutral. Give reason.
