He rejected Democritus's Idea of atoms
Aristotle
Thomson
Bohr
Dalton
He proposed electrons exist in energy levels
Bohr
Dalton
Rutherford
Chadwick
He said atoms can neither be created or destroyed
Dalton
Bohr
Aristotle
Rutherford
He proposed that protons and neutrons have the same mass
Bohr
Chadwick
Mr. Cormier
Walter White
He discovered electrons
Thomson
Logan Paul
Rutherford
Bohr
Who discoverd the nucleus?
Chadwick
Bohr
Thomson
Rutherford
Who's version of the atom looks what cookie monster holding?
Thomson
Bohr
Newton
Ruthford
The current modern atomic model suggests that
electrons are found in the nucleus
electrons are found in circular energy shells
electrons exist as clouds of electric charge.
electrons exists within a large positive sphere
The nuclus of an atom contains
protons and neutrons
electrons and neutrons
protons and electrons
electrons, protons, and neutrons
Which labelled part in the digram represents a proton
IV
I
III
II
Which of the following is the structure labelled IV?
proton
electron
nucleus
nuetron
Which of the following exists in energy levels
II
IV
I
III
What is the charge if the structure labelled I
neutral charge
it depends on the element
negative charge
postive charge
What are examples of composite particles?
elecrons and protons
nuclei and Leptons
protons and neutrons
electrons and tau neutrinos
What are examples of composite particles?
nuclei and Leptons
elecrons and protons
electrons and tau neutrinos
protons and neutrons
Electrons are a type of Le________.
Lepton
