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Atoms & Molecules Sakowski + Elements & the Periodic Table sakowski + FSSA - Sakowski Chemical
Atoms & Molecules Sakowski + Elements & the Periodic Table sakowski + FSSA - Sakowski Chemical
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FSSA - Atoms, Elements, Molecules the Periodic table Physical and Chemical Changes
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
Which of these is a chemical property of a piece of wood?
Whether it will burn
How large it is
Whether it will float
How much it weighs
2
A physical property of a substance
Is observed by changing the identity of the substance
must be observed by touching the substance
is anything that can cause a reaction
can be observed without changing it's identity
3
Sodium has 11 protons, 12 neutrons and 11 electrons. What is it's mass number?
11
23
12
22
4
What information in the periodic table indicates the number of protons in an atom?
the position of the element in the column
the element's atomic mass
the element's atomic number
the element's chemical symbol
5
In an atom, the number of protons equals the number of ____.
neutrons
nuclei
isotopes
electrons
6
Chemical or Physical? The silver spoon is tarnished.
Physical
Chemical
7
If an atom has 15 electrons, how many protons will it have?
0
20
30
15
8
The atomic mass of a neutron is
_______.
none
0
1
-1
9
What is a physical property of these nails?
it rusts
it has reacted with oxygen
it is a solid
it is corroded
10
Chemical or Physical Property? Corrosion (Rusting)
Physical
Chemical
11
When copper is pulled into sheets or hammered into a shape it is said to
be malleable
be ductile
be chemically reactive
have a high viscosity
12
The first shell of an atom can hold ________ electrons.
one
two
eight
four
13
The sun is made of mostly what element?
iron
oxygen
hydrogen
carbon
14
A material is ductile if it _____.
can be pulled or drawn into a long wire
can be hammered or rolled into flat sheets
is a mixture of metal with at least one other element
can transfer heat or electricity to another metal
15
All matter is made up of __
light
energy
atoms
heat
16
Which of the following is NOT a property common to non-metals?
brittle
reactive with other elements
dull
conduct electricity easily
17
Which group contains the most elements: metals, non-metals, or Metalloids?
non-metals
metalloids
metals
18
How does the atomic mass of the elements change as you move from top to bottom on the table?
Stays the same
Mass decreases
Mass increases
19
How did chemists change Mendeleev's periodic table?
The included chemical properties like bonding power.
The used atomic number instead of atomic mass.
They used atomic mass instead of atomic number.
They included physical properties like density.
20
A neutron has (a) ________ electrical charge.
negative
neutral
positive
21
The property that can only be observed when a new substance is formed.
Phase of Matter Property
Chemical Property
Mass property
Physical Property
22
An atom with a unique number of protons is called a(n) ___________.
element
isotope
compound
molecule
23
In an atom, the number of protons equals the number of ____.
nuclei
isotopes
electrons
neutrons
24
What is a half-life (in science)?
the amount of time for half a radioactive sample to decay
half of an element
25
Which of these is NOT a chemical property?
Texture
Reactive with oxygen
Reactive with an acid
Flammability
26
Electrons have a(n) __________ electrical charge.
equal
positive
neutral
negative
27
Which group of elements share characteristics with both metals and non-metals?
salts
halogens
metalloids
lanthanides
28
The Carbon atom model has ______ protons, _______ neutrons, and _______ electrons.
6/6/12
2/4/8
4/4/8
6/6/6
29
Which particles in atoms have a negative electric charge?
nucleus
electrons
neutrons
protons
30
The elements in a column of the periodic table ____.
are in the same period
have similar properties
have similar chemical symbols
have the same atomic mass
31
Chemical or Physical? The hardness of a mineral.
Physical
Chemical
32
Which of the following statements about metals is true?
Metals show a wide range of chemical properties
Metals are highly reactive
Metals do not react with oxygen
Metals need to be stored in sealed containers for safety
33
Sodium has 11 protons, 12 neutrons and 11 electrons. What is it's atomic number?
22
11
23
12
34
Chemical or Physical? The rose smells wonderful.
Chemical
Physical
35
Neutrons are located in the __________.
nucleus
cloud
molecule
orbitals
36
Atomic number is the number of ____________ in an element.
quarks
electrons
protrons
positrons
37
If copper can be pulled into a wire, it is said to
be ductile
be flammabile
have a high viscosity
be malleable
38
How does the reactivity of elements change as you move from left to right on the table?
Increases Reactivity
Doesn't change
Decreases reactivity
39
Chemical or Physical? The ice cubes are frozen.
Chemical
Physical
40
The elements that do not ordinarily form compounds are ______.
elements in the carbon family
halogens
noble gases
metals
