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WorksheetsHistory of the Atom and Basic Atomic Structure
Total questions: 15
Worksheet time: 15mins
This Scientist model is the most common. They said electrons orbit nucleus at fixed energy levels
Ernest Rutherford
Niels Bohr
John Dalton
JJ. Thompson
J.J. Thomson provided evidence that an atom...
is the smallest particle of matter
contains negatively and positively charged particles
has an overall negative charge
has an overall positive charge
What scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?
J.J. Thomson
Ernest Rutherford
John Dalton
Democritus
Who stated that all atoms of the same element are exactly alike?
Democritus
Dalton
Thomson
Borh
Niels Bohr suggested that electrons.......
are found in specific orbits
electrons are scattered throughout the atom
electrons move according to their energy level
electrons are positive
J.J. Thomson provided evidence that an atom...
is the smallest particle of matter
contains negatively charged particles
has an overall negative charge
has an overall positive charge
The word atom comes from a Greek word "atomos" that means
Invisible
Indivisible
Undivided
Indestructable
His atomic model was depicted similar to a planetary/solar system
Bohr
Thomson
Rutherford
Dalton
Who discovered the electron?
dalton
rutherford
thompson
milikan
7 smallest part of an element that has all of the properties of that element.
nucleus
gem
mineral
atom
Who proposed the plum pudding model of the atom?
A) Niels Bohr
B) J.J. Thomson
C) Ernest Rutherford
D) John Dalton
Which experiment led to the discovery of the nucleus?
A) Gold foil experiment
B) Cathode ray experiment
C) Oil drop experiment
D) Double-slit experiment
What is the charge of an electron?
A) Positive
B) Negative
C) Neutral
D) Variable
Which scientist is known for the uncertainty principle?
A) Albert Einstein
B) Niels Bohr
C) Werner Heisenberg
D) Erwin Schrödinger
What is the main component of an atom's mass?
A) Electrons
B) Protons
C) Neutrons
D) Both protons and neutrons
