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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
उत्तर
False - anode ray is a beam of positive ions or cations.
APPEARS IN
संबंधित प्रश्न
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
What are the two main parts of which an atom is made of?
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.
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.
TRUE \ FALSE
Electrons are present in the nucleus.
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.
Compare an electron and a proton in respect of mass and charge.
Compare a proton and a neutron in respect of mass and charge.
