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प्रश्न
Choose the correct option
The number of valence electrons in O2- is :
पर्याय
6
8
10
4
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उत्तर
6
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संबंधित प्रश्न
Name the subatomic particle whose relative charge is : –1
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 _________
How does an electron differ from a neutron?
Give the symbol and charge of each particle.
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?
Cathode rays are made up of
The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?
Anode rays travel in straight lines.
In a television tube, Cathode rays are deflected by magnetic fields.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
