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Chemistry Chapter 4 Atomic Structure Flashcards | StudBud
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Chemistry Chapter 4 Atomic Structure
Chemistry Chapter 4 Atomic Structure
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1
Dalton proposed his atomic theory in what year?
1909
1900
1818
1808
2
The two letters in each box on the periodic table are each element's
Symbol
Name
Initials
Classification
3
Electron were discovered
using a cathode ray
by accident
in a darkened lab
all of these
4
The subatomic particle with a negative charge
proton
megatron
neutron
electron
5
How many protons does this element have?
30
35.39
65.39
1,903
6
What is the symbol for this element
Zn
Zinc
30
65.39
7
How many protons are in this element?
0.011
6
12.011
12
8
What is the mass number for this element?
H
1.008
1
All of these
9
Democritus theorized that atoms could not be
destroyed
all of these
divided
created
10
The type of radiation that is made of 2 protons and 2 neutrons
gamma radiation
beta radiation
alpha radiation
delta radiation
11
This person is credited with proposing an atomic theory that lead to the one we have today
Aristotle
Dalton
Darwin
Democritus
12
Atoms emit radiation to lose energy when
The nuclear charge is raised
The nucleus is unstable
They are hyperactive
They are placed in cathode rays
13
The subatomic particle with a positive charge
proton
electron
all of these
neutron
14
The atomic number tells you
both of these
neither of these
the number of electrons
the number of protons
15
The subatomic particle with no charge
proton
neutron
none of these
electron
16
Changing the number of neutrons has which effect on the overall charge of the atom?
Makes it radioactive
Makes it positve
Makes it negative
causes no change
17
The type of radiation made up of electrons
beta
delta
alpha
gamma
18
When substances spontaneously emit radiation
isotope
radiation
meltdown
gamma rays
19
An element's position on the periodic table is determined by its
atomic number
date of discovery
symbol
name
20
How many electrons does this element have?
0.008
1.008
2
1
21
The first person to propose atomic theory was
Sophicles
Dalton
Democritus
Darwin
22
The smallest particle of an element that retains all the properties of that element
neutron
proton
atom
matter
23
Atomic mass is the weighted mass of
the neutrons of an element
the protons of an element
none of these
the isotopes of an element
24
An isotope has ______________ number of protons and ____________ number of neutrons
a different; a different
a different; the same
the same; the same
the same; a different
25
What is the atomic number of this element
30
65.39
35.39
Zn
