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प्रश्न
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
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उत्तर
- Number of neutrons – 4
Number of protons – 3
Number of electrons – 3 - Number of neutrons – 146
Number of protons – 92
Number of electrons – 92
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संबंधित प्रश्न
Which subatomic particle was discovered by : Chadwick ?
Name the subatomic particle whose relative charge is : 0
Fill in the blank of the following statement :
If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is __________.
What is a neutron? State its relative mass and charge.
Write down the number of neutrons in the nucleus of an atom having atomic number 17 and mass number 37.
State the number of neutrons in each of the atoms A to E. Also state which of the atoms A to E is a metal.
Isotopes exist because atoms of the same element can have different numbers of ______.
James Chadwick discovered the fundamental particle called proton.
Which subatomic particles have no charge?
Beryllium + α – rays → Carbon + ______.
