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प्रश्न
State whether the following statement is true or false :
The anode rays obtained from all the gases consist of positively charged particles called protons.
पर्याय
True
False
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उत्तर
False - anode ray is a beam of positive ions or cations.
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संबंधित प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Write true or false for the following statement
The central pad of the atom is called nucleus.
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 sum of the number of protons and neutrons of an atom.
Mention briefly the salient features of Dalton’s atomic theory (five points)
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
WRITE SHORT ANSWER
What do you mean by electron transition?
Why is an atom neutral inspite of the presence of charged particles in it?
State its one drawback of Rutherford’s atomic model.
