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Atom Review Flashcards | StudBud
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Atom Review
Atom Review
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1
What atomic structure is made up of MORE than one particle?
Energy levels/electron cloud
Nucleus
Neutrons
Protons
2
Protons have what charge
Neutral
Positive
Negative
3
what subatomic particles are found inside the nucleus
protons and electrons
electrons
protons and neutrons
neutrons
4
Which of the following can be used to identify an element
atomic mass
atomic number
neutrons
electrons
5
Which is the most likely reason why scientific theories change
scientists in the past were liars
scientists make new observations
public opinions change
6
A neutral atom is best described as having
more protons than neutrons
equal number of protons and electrons
equal number of protons and neutrons
more neutrons than protons
7
Neutrons have what charge?
negative
neutral
positive
8
What equation do you use to find the number of neutrons an atom has
protons + neutrons
atomic mass - electrons
protons - electrons
atomic mass - atomic number
9
Which scientist is best known for research that led to the modern understanding of theatom?
Galileo
Dalton
Aristotle
10
Atoms of the same element can have diff. atomic masses because they can have diff. numbers of
electrons
protons
electron cloud
neutrons
11
Most of the atom is made up of
protons
electrons
empty space
football fields
12
Electrons have what charge
Neutral
Negative
Positive
13
what is the mass of a proton and a neutron
too small to count towards the atoms total mass
4 atomic mass units
1 atomic mass unit
14
How can you find the mass of an atom WITHOUT the Periodic Table
protons-neutrons
Protons+electrons
same as the number of electrons
Protons+Neutrons
15
Who discovered the electron
Dalton
Thomson
Aristotle
Mrs. Trevino
16
Which subatomic particle is located outside the nucleus
neutron
electron
proton
17
How didRutherford's gold foil experiment contributeto modern atomic theory
proved an atom is roughly spherical in shape
discovered the proton
suggested that atoms consist mostly of empty space
