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प्रश्न
Which sub-atomic particle was discovered by Chadwick.
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उत्तर
Chadwick discovered neutrons.
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संबंधित प्रश्न
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
What is the nature of the charge on Cathode rays .
Choose the correct option
The number of valence electrons in O2- is :
An element A has 1 electron in its first shell. It combines with element B having 7 electrons in its third shell. What type of bond is formed?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
_______ is a negatively charged particle.
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
