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Ch. 12 Test Review
Ch. 12 Test Review
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Review of Heat, Atoms, and the Periodic Table
Flashcards
22 cards
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Questions
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Answers
1
An important property of matter that has to do with its particles is
electric charge
gravitational force
conductivity
magnetism
2
The most important number in Chemistry is the
atomic mass
mass number
electron number
atomic number
3
The vertical columns of the periodic table are
periods
halogens
groups
isotopes
4
There are ___________ cg in a gram
100
10,000
10
1000
5
A Nitrogen-15 atom has
7 neutrons
6 neutrons
15 neutrons
8 neutrons
6
There are ________ significant figures in the following: 305.0 g
2
1
3
4
7
The electrons in the outermost energy level are called
micro electrons
spectral electrons
valence electrons
macro electrons
8
Mass number is
number of protons and neutrons
number of electrons
number of protons
number of neutrons
9
Electrons involved in chemical bonding are
valance electrons
all electrons
electrons in electron cloud
1st energy level electrons
10
How many energy levels would you draw for a Calcium atom?
three
two
one
four
11
Being good conductors of heat and electricity is a characteristic of
non metals
metals
metalloids
12
The energy level with the most energy is the one
closest to the nucleus
farthest from the nucleus
13
Atomic mass is defined as
number of neutrons and protons
mass of the most common isotope
weighted average of the isotopes
protons, neutrons, and electrons
14
The scientist given credit for discovering the electron is
James Chadwick
Ernest Rutherford
JJ Thompson
Werner Heisenberg
15
The transition metals are located in
Group 1 and 2
groups 3-12
Groups 13-18
Group 18
16
Groups 3-12 are called the
alkali metals
transition metals
alkaline earth metals
17
The scientist who is given credit for the idea of an atomic nucleus is
JJ Thomson
Werner Heisenberg
Ernest Rutherford
Isaac Newton
18
The second energy level can hold
32 electrons
18 electrons
2 electrons
8 electrons
19
Atoms of the same element may contain
the same number of neutrons but a different number of protons
the same number of electrons but a different number of protons
a different number of protons and a different number of neutrons
the same number of protons but a different number of neutrons
20
Elements with a filled outer energy level are found in group
2
17
1
18
21
An atom has a mass number of 13 and has 6 electrons. What atom is this?
Carbon
Neon
Nitrogen
Aluminum
22
Which subatomic particle is the smallest?
neutron
electron
proton
