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Atomic Structure & Periodic Table Review Edited Flashcards | StudBud
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Atomic Structure & Periodic Table Review Edited
Atomic Structure & Periodic Table Review Edited
25 terms
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A review of atomic structure and the periodic table.
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
How many
neutrons
does Rb-85 contain?
37
122
12
48
2
Elements
on the modern
periodic table
are
arranged
according to their _________.
atomic radii
atomic masses
atomic properties
atomic numbers
3
Elements that have chemical and physical properities of
both metals and nonmetals
are _____.
rare earth metals
transition metals
alkali earth metals
metalloids
4
An atom, as shown on the periodic table, is
neutral
because it contains
equal numbers
of
protons and electrons
protons and neutrons
neutrons and ions
isotopes and ions
5
The proper arrangement of the elements on the periodic table is in this order from left to right:
metals, metalloids, nonmetals
nonmetals, metals, metalloids
metals, nonmetals, metalloids
halogens, metals, nonmetals
6
Elements in group 17 are called ____________.
metalloids
alkali metals
lanthanoids
nonmetals
7
Valence
electrons are located _________.
in between the inner and outer shells
in the first orbital outside the nucleus
in the outer orbital shell
inside the nucelus
8
How many
total electrons
does an oxygen ion
(O
-2
)
contain?
10
6
8
12
9
To become a negative ion, an atom must ____________.
lose electrons
gain electrons
gain protons
lose protons
10
Which of the following is an example of a
homogeneous mixture
?
mud
chocolate milk
chex mix
smog
11
How many
total electrons
would a ion of magnesium
(Mg
+2
)
contain?
14
12
8
10
12
The
small lowered number
to the right of an element symbol is :
the subscript
tells the # of molecules of the compound
has no meaning in a chemical formula
the coefficient
13
Which subatomic particles are located inside the nucleus of an atom?
electrons & protons
protons & neutrons
protons & electrons
electrons & neutrons
14
Which of the following is
TRUE
of the element Hydrogen?
It is in a group all by itself.
The universe if composed of more Hydrogen than of any other element.
It is a gas, not a metal.
It does not contain electrons
15
Whose periodic table was amazing because it PREDICTED elements that have not been discovered?
Rutherford
Mendeleev
Moseley
Dalton
16
The number of protons in the nucleus of an atom is the element's:
atomic mass
orbital capacity
atomic number
nucleus number
17
A
row
on the periodic table is
also called
a ________.
group
period
family
neighborhood
18
Group 1 elements are also called ____________.
transition elements
alkali metals
halogens
noble gases
19
Elements in groups 3 - 12 are called ___________.
alkaline earth metals
metalloids
nonmetals
transition metals
20
The
sum
of the number of protons and neutrons
inside the nucleus
is called the __________.
atomic mass
element number
nucleus number
atomic number
21
A
column
on the periodic table can
also be called
a ________ or a ___________.
family/ row
family / period
period / group
group / family
22
H2O and H2O2 are two different ways of writing a chemical formula for water.
False, H2O is water and H2O2 is PURE water.
True, because the numbers are just a way of counting atoms.
True, because the elements in compound determine it , not the numbers.
False, molecules w/ different formulas make completely different substances
23
Which listing below shows the proper charges of the subatomic particles?
protons +1 , neutrons -1 electrons 0
protons +1, neutrons 0, electrons -1
protons -1, neutrons 0, electrons +1
protons 0, neutrons +1, electrons -1
24
Which of the following is an example of a
heterogeneous
mixture?
sand
alloys
jello
gatorade
25
To become a
positive ion
( called a cation), an atom must ___________ .
gain electron(s)
lose electron(s)
gain proton(s)
lose proton(s)
