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प्रश्न
Write true or false for the following statement
The central pad of the atom is called nucleus.
विकल्प
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
Give the following a suitable word/phrase
Arrangement of electrons in the shells of an atom.
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
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?
Compare a proton and a neutron in respect of mass and charge.
Define the term Nucleons.
Draw a neat labelled diagram representing an atom. Name the three sub-atomic particles in the atom and represent them symbolically showing the mass and charge of each. State where the sub-atomic particles are present in the atom.
If an atom ‘A’ has an atomic number of eleven, state the number of protons and electrons it contains.
Select the correct answer from the choice in the bracket to complete the sentence:
A ________ is a sub-atomic particle with no charge and unit mass.
