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प्रश्न
Draw a neat labelled diagram representing an atom. Name the three sub-atomic particles in the atom and represent them symbolically showing the mass and charge of each. State where the sub-atomic particles are present in the atom.
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उत्तर
Sub-atomic particles are:
- Electrons \[\ce{_-1e}\] – present in orbit around the nucleus
- Proton \[\ce{^1_1P}\] – in nucleus
- Neutrons \[\ce{^1_2n}\] – in nucleus
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संबंधित प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Multiple Choice Questions
The outermost shell of an atom is known as
Define the term Atomic number.
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
WRITE SHORT ANSWER
What is the number of neutrons present in a potassium atom ?
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.
Define the term Mass number.
