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