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Worksheets8.P.1.2.2
Total questions: 20
Worksheet time: 10mins
A ______________________ is a type of element that has some of the characteristics of metals and nonmetals.
metal
nonmetal
transition metal
metaloid
A ______________________ is a class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity.
metal
nonmetal
metaloid
gas
The _____________ are a family of unreactive elements whose atoms do not gain, lose or share valence electrons.
alkali metals
alkali earth metals
alkaloids
noble gases
The ______________________ family is a group of very reactive elements whose atoms have 7 valence electrons.
alkali metaks
alkali earth metals
halogens
noble gases
Lithium and sodium belong to the ______________________ metal family.
alkali metals
alkali earth metals
noble gases
halogens
Mendeleev's Periodic Law states that when the elements are arranged in order of ______________________ atomic mass, certain sets of properties recur periodically.
increasing
decreasing
variable
identical
Alkali earth metals are highly reactive because each of their atoms have 2 ______________________ electrons.
valence
nuclear
inner
missing
An elements atomic ______________________ indicates the number of neutrons and protons in its nucleus.
core
score
number
mass
Mendeleev was the first to organize the elements according to their properties in a ______________________.
table
book
circle
album
A material that is ______________________ can be drawn into a wire.
brittle
ductile
malleable
acidic
An element is identified by
its number of protons.
the atomic mass.
the type of charge.
its number of isotopes.
Which do elements of the same vertical column on the periodic table have in common?
number of protons
chemical properties
number of neutron
homogeneous mixtures
If a highly-reactive metal with one valence electron is discovered, in which group would the element best fit?
group 1
group 2
group 6
group 18
The compound propane has three carbon atoms and eight hydrogen atoms. What is the chemical formula of propane?
CH11
C3H8
C8H3
C11H
How many protons are in a sodium atom?
Sodium has 1 proton.
Sodium has 3 protons.
Sodium has 12 protons.
Sodium has 23 protons.
How many neutrons does an atom of carbon (C) contain?
14
6
2
12
One magnesium (Mg) atom is most likely to bond with one atom of which element?
calcium (Ca)
chlorine (Cl)
oxygen (O)
sodium (Na)
If two compounds contain exactly the same elements, how can the compounds have different chemical properties
The elements are different states of matter.
The elements have different atomic masses.
The elements are combined in different ratios.
The elements are combined in the same ratios.
Why is silicon (Si) in group 14, period 3 on the periodic table?
Silicon, like all group 14 elements, is nonreactive and a gas at room temperature.
Silicon, like all period 3 elements, is nonreactive and a gas at room temperature.
Silicon, like all group 14 elements, is a semiconductor of electricity and a solid at room temperature.
Silicon, like all period 3 elements, is a semiconductor of electricity and a solid at room temperature.
Which elements have similar chemical properties?
Na, K, Mg
B, Al, S
N, O, F
He, Ar, Kr
