Advertisements
Advertisements
प्रश्न
Name the three fundamental particles of an atom.
Advertisements
उत्तर
The three fundamental particles of an atom are electron proton and neutron.
APPEARS IN
संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
Explain the rule with example according to which electrons are filled in various energy levels
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
WRITE SHORT ANSWER
What is the number of neutrons present in a potassium atom ?
ANSWER IN DETAIL
Name the three subatomic particles. How are they different from each other ?
State whether the following statement is true or false :
The anode rays obtained from all the gases consist of positively charged particles called protons.
Compare a proton and a neutron in respect of mass and charge.
Explain how the modern atomic theory contradicted Dalton’s atomic theory.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
