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The Atom Flashcards | StudBud
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The Atom
The Atom
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#olddeadguys
Flashcards
27 cards
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Questions
27
Answers
1
Each atom with a unique number of protons
neutrons
element
coffe
matter
2
What experiment did rutherford use?
Cathode ray
Plum pudding
Gold foil experiment
3
Atoms of different elements are different they have different numbers of what type of particle?
electrons
photons
protons
neutrons
4
A subatomic particle that has a negative charge is called a(n)
element
molecule
compound
electron
5
Atom with more or less electrons than protons
newton
demo
ions
isotopes
6
atomic mass unit
ton
neutron
tan
amu
7
When a nucleus of an atom decomposes
radation
carbon
material
matter
8
The particles that make up protons and neutrons are called ________________.
iceotopes
neutrons
quarks
electrons
9
What is an ion?
it is the + or- sign next to symbol
It is pink lemonade
it is the atomic mass
It is the number of orbitals in the atom
10
The positively charged center of an atom is called the ____________
Mr. Betts
neutrons
electron
protons
11
what are the electron rings called
orbitals
planet paths
Super electrons paths
rings
12
What did Rutherford learn about the atom in the gold-foil experiment?
it has a proton
It has an electron
it has a neucleus
It has a neutron
13
Two different isotopes of an element have different
lemonade
electrons
number of neutrons
number of protons
14
What is an atom’s nucleus made of?
neutrons
electrons
neutrons and protons
electrons and photons
15
The charge of an atom is
positive
unbalanced
negitive
No charge
16
Two elements with the same number of protons, but a different number of neutrons are called ___
Isotopes
isetops
17
The central core of an atom is called the electron
true
false
18
Total quantity of an object's matter is
weight
mass
19
An element’s atomic number is equal to its number of
electrons
matter
protons
atomic mass
20
material that makes up objects
atoms
matter
mass
weight
21
Democritus’s original atomic theory was revised because it
claimed matter is made of atoms
It was to complicated
It did not have a scientific basis
It did not have enough vowels
22
Thompson made his discovery about the atom during an experiment using
atoms
cathode rays
gold foil
a pool ball
23
According to the modern model of the atom
electrons and protons circle neutrons
moving electrons form an electron cloud
he number of protons for a given element varies
electrons and protons circle neutrons
24
According to Rutherford’s model of the atom, electrons behave like
a atomic bomb
a filp
a pencil in the air
Planets orbiting the sun
25
What is the atomic mass
number of neutrons
number of Protons
number of electrons
26
Was this fun?
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sort of
27
what is the equation for the electron?
p87=n-e=p
e+p=n
p+e=n
n9=n-e=87p=e
