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प्रश्न
Why is an atom neutral inspite of the presence of charged particles in it?
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उत्तर
An atom consists of protons which are positively charged, neutrons which are neutral and electrons which are negatively charged. The number of electrons is same as the number of protons. So, the two opposite charges balance each other and the atom remains neutral.
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संबंधित प्रश्न
Write true or false for the following statement
The central pad of the atom is called nucleus.
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
FILL IN THE BLANK
The electrons revolving in shells close to the nucleus are called ................... electrons.
WRITE SHORT ANSWER
What do you mean by electron transition?
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
Fill in the blank of the following statement :
The electron has _________ charge, the proton has _________ charge, and the neutron has _________ charge.
The particle not present in an ordinary hydrogen atom is :
Define the term Mass number.
Define the term Valence shell.
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached.
`""_1"H"^1`, `""_0"n"^1`,`""_(-1)"e"^0`
