Question

The particles represented in the figure are
1 2 3
a. electrons protons neutrons.
b. protons electrons neutrons
c. neutrons. protons electrons
d. electrons neutrons. protons

Answer 1

d because positive will attract electron and negative will proton so ans is D

Answer 2

Here is your answer
d. electrons, neutrons and protons

It is so because 1 is attracted towards positive and we know that unlike charge attract each other so it is electron.
Same is for 3 i.e. proton

And 2 is neutron. it doesn't show any deflection because it has no charge

Hope it is useful