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WorksheetsPhysical Science 2nd Semester Final
Total questions: 20
Worksheet time: 12mins
Matter that has a definite volume but no definite shape is a ____.
plasma
solid
liquid
gas
Matter that has a definite volume and a definite shape is a ____.
plasma
solid
liquid
gas
Matter with no definite volume and no definite shape is a ____.
plasma
solid
liquid
gas
The following are examples of physical properties EXCEPT ____.
shape
ability to react with oxygen
color
density
Which of the following changes is chemical rather than physical?
wood is burned
water is boiled
glass is shattered
aluminum foil is crumpled
In going from left to right in any given row in the periodic table, the size of atoms generally _____.
changes randomly
increases
decreases
stays the same
The elements in Groups 3 through 12 of the periodic table are the ____.
halogens
alkaline earth metals
actinides
transition elements
Radioactive elements comprise a majority of the ____.
halogens
noble gases
actinides
lanthanides
Which of the following elements is not a coinage metal?
platinum
gold
silver
copper
An allotrope of carbon that is soft and can be used as a lubricant is ____.
diamond
graphite
silicon
sand
What do two or more elements combine to form?
a solution
a substance
a compound
an element
In a chemical formula, the number of each type of atom in the compound is shown by numbers called ____.
oxidation numbers
subscripts
superscripts
chemical symbols
Dot diagrams are used to represent ____.
protons
the structure of the nucleus
atomic mass
outer electrons
How many dots are shown in the electron dot diagram for calcium, element number 20?
two
twenty
eight
one
Sulfur, element 16, forms a negative ion. How many dots would you have to show in the electron dot diagram for the sulfur ion?
eight
six
sixteen
two
In carbon dioxide, each oxygen atom shares four electrons with the carbon atom. What is this type of bond called?
triple covalent
double covalent
ionic
polar covalent
Most of the time the oxidation numbers of the nonmetals are _______.
negative
positive
neutral
covalent
The temperature at which ice changes into liquid water is called its (a) .
The main difference between protons and electrons is that protons have _______ charge and electrons have ______ charge.
(a)
The periodic table is organized by atomic (a) because it always increases left to right.
