Advertisements
Advertisements
प्रश्न
State the location of electrons, protons and neutrons in an atom.
Advertisements
उत्तर
In an atom, the position of subatomic particles is as follows:
Protons: They are positively charged particles present at the centre of the nucleus of an atom.
Neutrons: They are neutral subatomic particles also present in the nucleus of an atom.
Electrons: They are negatively charged particles which revolve in particular orbits around the nucleus of an atom.
APPEARS IN
संबंधित प्रश्न
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 electrons present in the outermost shell.
What are the two main parts of which an atom is made of?
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
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.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
WRITE SHORT ANSWER
Describe a discharge tube.
Fill in the blank of the following statement :
The electron has _________ charge, the proton has _________ charge, and the neutron has _________ charge.
State its one drawback of Rutherford’s atomic model.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
