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प्रश्न
Write true or false for the following statement
The central pad of the atom is called nucleus.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
Define the term Atomic number.
What are the two main parts of which an atom is made of?
Tick the most appropriate answer.
In 1908, R A Millikan found the charge of an electron to be
- 1.6 x 10-19 C
- 1.6 x 10-15 C
- 1.4 x 10-19 C
- 1.6 x 19-16 C.
WRITE SHORT ANSWER
What is an atom?
WRITE SHORT ANSWER
Describe a discharge tube.
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
WRITE SHORT ANSWER
What is the number of neutrons present in a potassium atom ?
