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प्रश्न
How does an electron differ from a neutron?
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उत्तर
| Electron | Neutron |
| • Relative mass is 1/1840 u | • Relative mass is 1u |
| • Absolute mass is 9 × 10–28 g | • Absolute mass is 1.602 × 10–24 g |
| • Charge is -1 | • It is neutral |
APPEARS IN
संबंधित प्रश्न
Name the subatomic particle whose relative charge is : –1
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
What are cathode rays? How are these rays formed?
Give the symbol and charge of each particle.
Explain the rule according to which electrons are filled in various energy levels.
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
Cathode rays are made up of
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
An atom has a number of orbits and each orbit has protons.
Assertion: Helium has four electrons in the outermost orbit.
Reason: Neon has eight electrons in the outermost orbit.
