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प्रश्न
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
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उत्तर
Following were the observations made by Rutherford:
- Most of the alpha particle passed straight through the foil without any deflection from their path.
- A small fraction of them were deflected from their original path by small angles.
- Only a few particles bounced back
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
Give the following a suitable word/phrase.
The sum of the number of protons and neutrons of an atom.
Explain the rule with example according to which electrons are filled in various energy levels
What are the two main parts of which an atom is made of?
Tick the most appropriate answer.
Which of the following scientists observed that cathode rays consists of negatively charged particles?
- John Dalton
- J J Thomson
- James Chadwick
- Democritus
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 ?
Fill in the blank of the following statement :
The electron has _________ charge, the proton has _________ charge, and the neutron has _________ charge.
Compare a proton and a neutron in respect of mass and charge.
If an atom ‘A’ has an atomic number of eleven, state the number of protons and electrons it contains.
