Atom Theory

Thomson's contribution to the atom as the?

• Electron

• Proton

• Neuton

• Nucleus

What was Ernest Rutherford's contribution to the model of the atom?

• Mostly empty space

• The nucleus

• The neutron

• All of the above

What was Bohr's contribution to the model of the atom?

• The nucleus

• Energy levels

• The neutron

• The electron

Why was Bohr's contribution to the atom so important

• We know now that the electron is in circular orbits

• We know now that the proton determines the atomic number on the periodic table

• We understand why elements combine on the periodic table

• We understand where the electron is in it's orbit around the sun

What was Dalton's contribution major contribution to the understanding of the atom?

• Atoms are spherical in shape

• Atoms are spherical with electrons evenly spaced throughout

• Every element has at least 3 electrons in it

• Every element is a specific type of atom

Which model of the atom does the picture represent

• Dalton's atomic model

• Rutherford's nuclear model

• Thomson's "plum pudding" model

• The electron cloud model

Which model of the atom does the picture represent

• Dalton's atomic model

• Rutherford's nuclear model

• Thomson's "plum pudding" model

• The electron cloud model

Which model of the atom does the picture represent

• Dalton's atomic model

• Rutherford's nuclear model

• Thomson's "plum pudding" model

• Bohr's Atomic model

Which model of the atom does the picture represent

• Dalton's atomic model

• Rutherford's nuclear model

• Thomson's "plum pudding" model

• Bohr's Atomic model

Why was the model changed to the "Electron Cloud" model?

• The electron orbits the nucleus like planets do

• The electron moves randomly in the atom and we do not know where it is

• The electron has a fixed path around the nucleus

• The electron is in energy shells around the nucleus