Electron has mass in amu ………….
a) 0.00054859
b) 0.0000078654
c) 0.00000786
d) 0.0006547579
Electron has mass in kg ………….
a) 9.11 × 10-31
b) 8.11 × 10-31
c) 8.11 × 10-31
d) 3.11 × 10-31
Charge of electron is ……..
a) 1.6022 × 10-19 C
b) 9.87 × 10-19 C
c) 8.11 × 10-31 C
d) none of these
Electrons are very …….. particles.
a) light
b) no mass
c) heavy
d) none of these
Proton is a ……… particle.
a) negatively charged
b) positively charged
c) neutral
d)none of these
Proton has mass in amu ………….
a) 1.00654357
b) 0.00000786
c) 1.0072766
d) 0.00065475
