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Atoms/Elements/Periodic Table Review Flashcards | StudBud
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Atoms/Elements/Periodic Table Review
Atoms/Elements/Periodic Table Review
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1
What is the definition of an element?
each of 118 substances that can be chemically broken down
each of 118 substances that cannot be chemically broken down
2
Which of the following is an element?
Chalk
Iron
Sugar
Steam
3
What is the atomic mass of this element?
Calcium
40.08
Ca
20
4
How are elements organized in the periodic table?
by atomic mass and melting point
by density and date of discovery
by abundance in nature and usefulness to humans
by atomic number and properties
5
What is an atom?
the biggest particle of a chemical element that can exist.
the smallest particle of a chemical element that can exist.
the flattest particle of a chemical element that can exist
the roundest particle of a chemical element that can exist.
6
Iron is an element
False
True
7
How do atoms of copper differ from atoms of aluminum?
They can be formed by physical changes.
They are not pure substances.
They are made up of more than one type of particle.
They have different chemical properties.
8
Think about a wooden chair and a balloon. What do these two objects always have in common?
Both have the same physical properties.
Both are made of the same kind of atoms.
Both are made of atoms.
Both are made of the same number of atoms.
9
Which substance is one that cannot be separated or broken down into simpler substances by chemical means?
water vapor
candle wax
table salt
gold wire
10
Robert is testing two objects. Each object is made of one element. What could Robert do to see which element it is.
Find the density of each object.
Just guess.
Weigh each object.
Find the mass of each object.
11
What is the charge of a neutron?
negative
neutral, 0
positive
12
Which of these is the smallest?
matter
atoms
cells
elements
13
What is the charge of an electron?
positive
negative
neutral, 0
14
What is the atomic number of this element?
20
40.08
Ca
Calcium
15
Which statement correctly describes atoms?
Atoms come in different sizes, but most are visible using a simple hand lens.
Atoms of all substances have the same chemical properties.
Atoms are easily destroyed when matter is cooledor heated.
Atoms combine to make all the substances onEarth.
16
Here is a portion of the periodic table. Which two elements are most likely to have similar physical properties?
copper and zinc
cadmium and indium
gallium and cadmium
copper and silver
17
What is the charge of a proton?
positive
negative
neutral, 0
