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प्रश्न
Define the term Nucleons.
उत्तर
The protons and neutrons collectively are known as nucleons.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
Write true or false for the following statement
The maximum number of electrons in the first shell can be 8.
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
ANSWER IN DETAIL
What is the maximum number of electrons that L shell can accommodate ? Give reasons for your answer.
ANSWER IN DETAIL
Write a note on valence shell.
Explain how the modern atomic theory contradicted Dalton’s atomic theory.
