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प्रश्न
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
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उत्तर
This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.
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संबंधित प्रश्न
Give the following a suitable word/phrase
Arrangement of electrons in the shells of an atom.
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
What are the two main parts of which an atom is made of?
Tick the most appropriate answer.
Which of the following scientists observed that cathode rays consists of negatively charged particles?
- John Dalton
- J J Thomson
- James Chadwick
- Democritus
Why is an atom neutral inspite of the presence of charged particles in it?
Compare an electron and a proton in respect of mass and charge.
The particle not present in an ordinary hydrogen atom is :
Name the three fundamental particles of an atom.
Define the term Mass number.
Define the term Valence shell.
