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