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Periodic Table
Periodic Table
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Ch 12 - Physical Science
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Which class of metals are also called semiconductors?
metals
nonmetals
noble gases
metalloids
2
An element that is a very reactive gas is most likely a member of the
Alkali Metals
Halogens
Actinides
Noble Gases
3
On the periodic table, a row of elements is called a(n)
period
family
group
atomic line
4
The element _________ is a metalloid.
silicon, Si
lead, Pb
phosphorus, P
carbon, C
5
How many elements are in the first period of the periodic table?
2
18
1
8
6
Moseley rearranged the elements in Mendeleev's periodic table in terms of
density
chemical symbols
atomic mass
atomic number
7
One property of most nonmetals is that they are
flattened when hit with a hammer
solids at room temperature
poor conductors of electric current
shiny
8
Groups 3-12 are commonly referred to as
transition metals
lanthanides
alkali metals
actinides
9
Most of the elements in the periodic table are
Metals
Poor conductors of electric current
Nonmetals
Metalloids
10
Which of the following groups is used in neon lights?
nitrogen group
oxygen group
halogens
noble gases
11
How many electrons do alkali metals have in their outer energy level
3
4
2
1
12
In the periodic table, elements are classified as __________ according to their properties.
neutral or ionized
solid, liquid or gas
metals, nonmetals and metalloids
bondable or not bondable
13
Which of the following is the LEAST reactive?
alkaline-earth metal
alkali metal
noble gas
halogen
14
On the periodic table, a column of elements is called
an atomic line
a transition
a period
a group or family
15
Mendeleev arranged the elements
randomly
in order of increasing atomic mass
alphabetically
in order of increasing atomic number
