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