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WorksheetsChemistry Test Review
Total questions: 25
Worksheet time: 4hrs 10mins
Choose all that are true about atomic symbols.
They will always have one capital letter.
They may have more than one letter.
They may have two capital letters.
They always include the first letter of the element's English name.
Why is copper's atomic number 29?
It has 29 protons.
It has 29 neutrons.
It has 14 protons plus 15 neutrons. 14 + 15 = 29
It was the 29th element identified.
How many naturally occurring elements are there?
29
92
118
88
Which element has 45 protons?
Rhodium
Scandium
Xenon
There isn't enough to determine for sure.
What is the smallest whole unit of matter?
atom
nucleus
cell
proton
electron
How many neutrons does Chlorine have?
18
35
17
19
Which is true about subatomic particles?
Neutrons have the same mass as protons.
Protons and neutrons have the same charge.
Protons and electrons are found in the same place.
Electrons and protons have the same mass.
Choose all that are true about Krypton.
It has 49 neutrons.
It will not form molecules.
It has 36 electrons.
It has 36 protons.
Atoms are the smallest things in the universe.
Lie! That is shameful lie!
Truth! Pure, sweet, truth!
What two things are found in the nucleus of an atom?
Protons and Neutrons
Positive charges and negative charges
Protons and Electrons
Neutral charges and negative charges
Where are the electrons found?
Electron Cloud
In the nucleus.
With the protons.
With the neutrons.
What is the PEN for Osmium?
76
76
114
76
76
115
190.23
190
190
76
Which has the least mass?
Electrons
The nucleus
Protons
Neutrons
What element has 37 electrons?
Rubidium
Rhodium
Ruthenium
Rutherfordium
Why are subatomic particles measured using Atomic Mass Units?
Subatomic particles are too small for pounds or grams.
Atomic Mass Units were in use before pounds or grams.
Atoms are so dense that they are very heavy for their size. AMU's keep the numbers small enough to understand.
Atomic Mass Units just sound pretty cool.
Carbon Dioxide (CO2) comes out of you when you exhale. What is true about CO2? Choose all that apply.
It is a molecule
It is a compound
It contains Cobalt
It is an element.
What do we call different kinds of atoms?
Elements
Molecules
Compounds
Metals
On the periodic table, what gives you the number of protons plus the number of neutrons an element has?
Atomic Mass
Atomic Symbol
Atomic Number
Atomic Name
What do we call the joining of two atoms?
A bond
A connection
A union
An attachment
Choose all that are true about this picture.
It is a molecule
It is a compound
It has three elements in it.
It contains Osmium.
How many neutrons does Germanium (32) have?
(a)
What is the rounded atomic mass of Rubidium (37).
(a)
How many electrons does Polonium (84) have?
(a)
How many neutrons does Praseodymium (59) have?
(a)
How many neutrons does Hydrogen (1) have?
(a)
