Atomic Structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Which scientist was first to come up the Atomic Theory that included four parts

• John Dalton

• Dalton

• Ernest Rutherford

• JJ Thomson

Who discovered tht the nucleus of an atom contained positively charged particles

• James Chadwick

• Niels Bohr

• John Dalton

• Ernest Rutherford

Which scientist discovered the electron

• JJ Thomson

• Erenst Rutherford

• John Dalton

• Niels Bohr

What did Rutherford fire at the gold foil

• alpha particles

• protons

• particles

• electrons

The majority of an atoms mass is

• in the nucleus

• in the electron cloud

• in the space between the nucleus and electrons

which of the following conclusions are based on Rutherfords gold foil experiment

• an atom is mostly empty space

• the nucleus is psitively charged

• the atom has a small dense nucleus

• all answers are correct

The smallest particle of an element that still represents that element

• nucleus

• electron

• proton

• atom

Which scientist proposed the 'plum pudding' model of the atom

• JJ Thomson

• John Dalton

• Neils Bohr

• Ernest Rutherford

Who worked with Rutherford to discover particles with no charge called neutrons

• James Chadwick

• Niels Bohr

• John Dalton

• JJ Thomson