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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
The subatomic particle called electron was discovered by :
The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?
Explain the rule according to which electrons are filled in various energy levels.
Write down the electronic configuration of the following:
(a) `""_13^27"Y"`
(b) `""_17^35"Y"`
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
What is the relation between the number of protons and the number of electrons in an atom?
_______ is a negatively charged particle.
Atoms of all metals will have ______ electrons in their outermost orbit.
The relative charge of an electron is – 1.
Assertion: Helium has four electrons in the outermost orbit.
Reason: Neon has eight electrons in the outermost orbit.
