Proton has mass in kg ………….
a) 9.11 × 10-31
b) 8.11 × 10-31
c) 1.6726 × 10-27
d) 3.5265 × 10-27
Charge on electron is ……..
a)1.6022 × 10-19 C
b) 1.6022 × 10-19 C
c) 1.55 × 10-12 C
d) none of these
Proton is …….. times heavier than an electron.
a)1856
b) 1865
c) 1837
d) 1975
Protons are present in the ……….
a)orbits
b) nucleus
c) in between orbits
d) none of these
Neutron is a …………..particle.
a) negatively charged
b) positively charged
c) neutral
d)none of these
Neutron has mass in amu ………….
a) 1.0086654
b) 0.00000786
c) 1.0072766
d) 0.00065475
