Exam 1 Prep

What are the group of elements called that are highlighted in red?

Which is NOT an example of physical change

What is the name of the Group 7 elements highlighted in yellow?

Suggested that electrons travel around the nucleus of an atom in orbits or definite paths

Experimented with cathode ray tubes and discovered electrons, proposed plum pudding model

What atom does the Bohr model represent?

What is the name of the Group 8 elements highlighted in red?

He put a charge on a tiny drop of oil and determined the size of the charge on an electron

What atom does the Bohr model represent?

What atom does the Bohr model represent?

Cations are negative

Found atomic mass was double number of protons = discovery of the neutron, Manhatten project

What atom does the Bohr model represent?

Proposed that all atoms are small particles that cannot be created, divided, or destroyed.

The location of an electron cannot be stated; electrons exist in regions called electron clouds

What is the name of the Group II elements?

Known as the "Father of Modern Chemistry", proposed the Law of Conservation of Mass (Matter)

What is the name for the Group I elements?

Anions are negative

Which is a(n) example of a physical property?

What is the name for the block of elements highlighted in yellow?

Performed the Gold Foil Experiment; nucleus contains positively charged particles