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Periodic Table Review Flashcards | StudBud
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Periodic Table Review
Periodic Table Review
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#periodic table #groups&periods
Flashcards
30 cards
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Questions
30
Answers
1
A row in the periodic table is called
table
class
period
group
2
Which is true about any group in the periodic table?
It contains 18 different elements
It includes metals, nonmetals, and metalloids
It includes elements with similar properties
It includes gases, liquids, and solids
3
Almost all metals are in what state at room temperature?
gas
solid
liquid
4
Which statement is true about the modern day periodic table?
All of the above
It has more groups than Mendeleev's table
It's periods vary in how many elements they contain
It includes more than 100 elements
5
Which statement is true about valence electrons?
they are potentially involved in chemical reactions
they determine whether an element will conduct electricity
All of the above
they are located in the outer energy level of an atom
6
Which one is NOT part of the Noble gases family?
neon
oxygen
helium
argon
7
All nonmetals are gases at room temperature.
True
False
8
A nonmetal is an element that
is shiny and malleable
cannot conduct electricity
is completely unreactive
exists only as gas or liquid
9
How many groups are there on the modern periodic table?
7
8
20
18
10
The modern periodic table is similar to Mendeleev's periodic table.
False
True
11
_______ electrons determine how reactive an element is.
1
none
all
valence
12
Which of the following elements is a metalloid?
Selenium
Silicon
Silver
Sulfur
13
Elements in the same period of the periodic table have similar properties.
True
False
14
In the modern periodic table, atomic number
increases from top to bottom in each period
None of the above
Is the same within each group but not between groups
increases from left to right within each group
15
A column in the periodic table is called
class
group
table
period
16
Elements with eight valence electrons are unreactive.
False
True
17
What group is the noble gas?
19
16
18
17
18
Carbon and oxygen are in what class?
metalloids/semimetals
nonmetals
metals
19
All chemical symbols have two letters.
True
False
20
Atomic number increases from left to right across the periodic table.
False
True
21
Halogens are elements in group
1
17
15
18
22
Metals are good conductors of heat.
True
False
23
The number of protons in the nucleus of an atom of that element is
mass number
atomic weight
atomic number
isotopes
24
The symbol for chromium is
Cm
Cr
C
Ch
25
The shortest period in the periodic table is period
6
1
7
18
26
The classes of the elements in the periodic table are
groups, periods
metals, nonmetals,
shiny and dull objects
metals, nonmetals, metalloids
27
Which statement is false about the halogens?
They include flourine and chlorine
They have seven valence electrons
They are the elements in Group 17
They are the least reactive
28
Which statement is true about Mendeleev's periodic table?
It was not useful
It was based on Atomic Mass
It contained 18 families
None of the above
29
Approximately how many elements are in the periodic table of elements?
between 25-50
between 50-75
more than 100
less than 25
30
Hydrogen is in the same group as alkali metals because
it has one valence electron
it is unreactive
it is a metal
it is in period 1 of the periodic table
