atom structure

this experiment belongs to

• antoine lavosier

• democritus

• thomson

• rutherford

plum pudding theory is right or not ?

• correct

• wrong

alpha particles are

• positively charged

• negatively charged

• neutral

• gamma rays

thomson discovered

• electrons

• protons

• neutrons

Rutherford discovered

• electrons

• protons

• neutrons

proton has the same mass as

• neutron

• electron

• shells

• plum pudding

the number of electrons around the nucleus of an atom is

• greater than the number of protons in the nucleus

• same as the number of protons in the nucleus

• not equal to neutron and proton ..has it's own unique number

• same as the number of proton and neutron together

how many electrons are found on the first shell of an atom?

• 1

• 2

• 3

• 4

• we can't say exact number

carbon has more shells than lead

• true

• false

Who discovered neutron

• James bond

• James dalton

• james chadwick

• james thomson