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प्रश्न
Which of the following statement is always correct?
विकल्प
An atom has equal number of electrons and protons.
An atom has equal number of electrons and neutrons.
An atom has equal number of protons and neutrons.
An atom has equal number of electrons, protons and neutrons.
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उत्तर
An atom has equal number of electrons and protons.
Explanation -
An atom has equal number of electrons and protons since it is neutral.
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संबंधित प्रश्न
Name the subatomic particle whose relative charge is : –1
What is an electron? State its relative mass and charge.
Write down the number of electrons in X and neutrons in Y.
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
What charge will Y migrate to during the process of electrolysis?
What are the noble gases?
All non–metals will have ______ electrons in the outermost orbit of their atoms.
The relative charge of an electron is – 1.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
