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