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प्रश्न
What are the two main parts of which an atom is made of?
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उत्तर
- The centrally located nucleus
- The outer circular orbits.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
Multiple Choice Questions
The outermost shell of an atom is known as
Multiple Choice Questions
number of valence electrons present in magnesium is
FILL IN THE BLANK
The electrons revolving in shells close to the nucleus are called ................... electrons.
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
WRITE SHORT ANSWER
Describe a discharge tube.
Why is an atom neutral inspite of the presence of charged particles in it?
State the location of electrons, protons and neutrons in an atom.
Name the sub-atomic particle whose charge is 0.
