Chemistry Grade 5

Who made the first periodic table

• Dmitri Mendeleev

• John Dalton

• Antoine Lavoisier

• Joseph Priestley

Who discovered oxygen and hydrogen

• Amedeo Avogadro

• Joseph Priestley

• Johann Wolfgang Döbereiner

• Benjamin Thompson

Why should organism be classified

Draw a human cell

What is the atomic number of oxygen?

• 6

• 7

• 8

• 9

Who proposed the law of conservation of mass?

• Antoine Lavoisier

• John Dalton

• Joseph Priestley

• Dmitri Mendeleev

Which scientist is known for the discovery of the electron?

• Ernest Rutherford

• James Chadwick

• J.J. Thomson

• Niels Bohr

Who is known for the discovery of the neutron?

• Ernest Rutherford

• James Chadwick

• J.J. Thomson

• Niels Bohr

Who proposed the theory of relativity?

• Isaac Newton

• Albert Einstein

• Nikola Tesla

• Stephen Hawking

Who discovered the nucleus of an atom?

• Ernest Rutherford

• James Chadwick

• J.J. Thomson

• Niels Bohr