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प्रश्न
Which sub-atomic particle was discovered by Chadwick.
उत्तर
Chadwick discovered neutrons.
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संबंधित प्रश्न
Fill in the blanks of the following statements :
An atom has atomic mass number 23 and atomic number 11. The atom has_________ electrons.
Cathode rays are a beam of fast moving _________
The maximum number of electrons that can be accommodated in L shell are_________
The maximum number of electrons that can go into the M shell is _________
What is an electron? State its relative mass and charge.
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.
Element X has electronic configurations 2, 8, 18, 8, 1. Without identifying X,
- Predict the sign and charge on a simple ion of X.
- Write if X will be an oxidizing agent or a reducing agent. Why?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
If electrons are getting added to en element Y; then
Is Y getting oxidized or reduced?
What is the relation between the number of protons and the number of electrons in an atom?
When an atom gains an electron it has more electrons and thus it carries a positive charge.
