Mama mo scientist wow

Who is the ancient Greek philosopher credited with the idea of atoms more than 2400 years ago?

• Robert Boyle

• Democritus

• Niels Bohr

• Ernest Rutherford

Who was the first scientist to suggest that an atom is composed of smaller particles?

• Ernest Rutherford

• J.J. Thomson

• John Dalton

• Robert Boyle

Who discovered that an atom has a tiny, dense, positively charged center called the nucleus?

• Frederick Soddy

• James Chadwick

• Niels Bohr

• Ernest Rutherford

Who is known as the 'father of protons'?

• James Chadwick

• Ernest Rutherford

• Frederick Soddy

• Niels Bohr

Who is credited with proposing the delicious Plum Pudding Model of the atom?

• Robert Millikan

• Ernest Rutherford

• J.J. Thomson

• Niels Bohr

Who made the groundbreaking discovery that an atom is mostly empty space with a tiny, dense, positively charged nucleus?

• Ernest Rutherford

• Frederick Soddy

• Niels Bohr

• James Chadwick

Who proposed the idea that certain elements might exist in forms that differ in atomic weight while being indistinguishable and inseparable chemically?

• James Chadwick

• Ernest Rutherford

• Frederick Soddy

• Niels Bohr

Who was the brilliant scientist that unlocked the secrets of the electron's charge and mass using the Oil Drop Experiment?

• Robert Millikan

• J.J. Thomson

• John Dalton

• Robert Boyle

Who is credited with proposing the revolutionary Quantum Mechanical Atomic Model or Wave Model of the atom?

• James Chadwick

• Frederick Soddy

• Niels Bohr

• Erwin Schrodinger and Werner Heisenberg

When was the electron discovered by J.J. Thomson?

• 1913

• 1932

• 1908

• 1897