stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chapter 3 Atomic Theory Review Flashcards | StudBud
Explore
/
Chapter 3 Atomic Theory Review
Chapter 3 Atomic Theory Review
17 terms
·
StudBud Administration
·
563 plays
Chapter 3 Modern Chemistry Atomic Theory Review
Flashcards
17 cards
F
Practice quiz
P
Host live
L
Questions
17
Answers
1
What was discovered with the cathode ray tube?
atom
neutron
electron
proton
2
This ancient Greek is credited with the basic idea of the atom.
Aristotle
Democritus
Socrates
Plato
3
Who first identified nucleus?
Rutherford
Democritus
Thompson
Chadwick
4
The gold foil experiment shows the deflection of + alpha particles because the nucleus is?
small
a trouble maker
positive
spongy
5
If you alter the number of neutrons, what do you create?
radioactivity
isotope
atom
ion
6
Who reintroduced the idea of the atom in the early 1800s and created the 1st atomic theory?
Niels Bohr
J.J. Thomson
John Dalton
Ernest Rutherford
7
Rutherford’s Gold foil experiment is credited with discovering the _____________.
electron orbits
electron cloud
neutrons
nucleus
8
What would cause an atom to not be neutral?
p+ equal n*
p+ don't equal e-
p+ equal e-
p+ don't equal n*
9
To calculate the number of neutrons for isotope Carbon - 14.. what would you subtract from 14?
How many isotopes there are
Nothing, you add the atomic weight
Carbon's Atomic Number
Carbon's Mass
10
Who developed the theory of matter (is the basis of modern chemistry)?
Democritus
Bohr
Rutherford
Dalton
11
This experiment showed that atoms have a hard, massive, positive, and really small nucleus.
cathode rays
time dilation
double slit
gold foil
12
What type of notation is this called for the isotope Helium-4
Hyphen notation
Atomic notation
Just an Isotope
Nuclear notation
13
What is the name of the positively charged particle found in the center of the atom?
electron
proton
nucleus
neutron
14
What atomic theorist proposed the “plum pudding model” and discovered the ELECTRON?
Rutherford
Democritus
Bohr
Thomson
15
What is the atomic number?
How heavy the atom is
The number of protons
The total of protons or neutrons
The number of particles in an atom
16
Where are electrons located in an atom?
nucleus
with the neutron
throughout the atom
electron cloud
17
Which of these is NOT part of Dalton's Theory?
atoms combine in simple whole number ratios
atoms are made up of quarks
all matter is made of small particles
atoms cannot be subdivided