Name_______________
Tech Science I - Chemistry
Terms – Making Atoms
Match the term with the definition.
______1. Atom
______2. Proton
______3. Neutron
______4. Electron
______5. Atomic Mass
______6. Atomic Number
______7. Energy Level
a. The part of an atom that is in the nucleus and has a
positive charge.
b. The area in the center of an atom.
c. The average number of protons and neutrons in an
atom.
d. The area in an atom where electrons are located.
e. The part of an atom that is in the nucleus but has no
charge.
f. The number of protons in an atom.
g. The basic building block of matter.
h. One or two letters that represent an element
i. The part of an atom that has a negative charge and
is responsible for much of the activity in an atom.
______8. Nucleus
______9. Chemical Symbol
True or False – Making Atoms
Mark each statement true or false.
______1. Elements in the same column have the same Lewis Dot Structures.
______2. Atoms want the number of electrons to be equal to the number of neutrons.
______3. The first energy level can hold a maximum of three electrons.
______4. The second energy level can hold a maximum of 10 electrons.
______5. Lewis dot structures are based on the number of electrons in the outermost
energy level with electrons in it.
Multiple Choice – Making Atoms
Choose the best answer for each question.
_____1.
a.
b.
c.
d.
Atoms are divided into two main areas these are called
Protons and Electrons
Nucleus and Protons
Energy Levels and Electrons
Nucleus and Energy Levels
_____2.
a.
b.
c.
d.
What parts of an atom go into the nucleus?
Protons, Neutrons, and Electrons
Protons and Electrons
Protons and Neutrons
Neutrons and Electrons
Use the information below to answer the next few questions.
7
N
Nitrogen
14.0067
_____3.
a.
b.
c.
d.
A drawing of a nitrogen atom would have how many protons?
7
14
21
2
_____4.
a.
b.
c.
d.
e.
A drawing of nitrogen would have how many neutrons?
7
14
21
5
2
_____5.
a.
b.
c.
d.
e.
A drawing of nitrogen would have how many electrons?
7
14
21
5
2
_____6.
a.
b.
c.
d.
e.
How many electrons would be in the second energy level of nitrogen?
7
14
21
5
2
_____7.
a.
b.
c.
d.
How many dots would be on the Lewis Dot Structure of nitrogen?
7
14
5
2
Matching - Bonds and Compounds
Choose the definition that best matches each term.
j. An element that has a negative charge because it
has gained an electron.
______2. Formula
k. A picture of an element that shows how many
electrons are in its outside energy level
______3. Cation
l. A combination of any number of elements
chemically bonded together.
______4. Anion
m. An element that has a positive charge because it has
______5. Lewis Dot Structure
lost an electron.
n. A connection between two atoms that have gained
______6. Ionic Bond
or lost electrons.
o.
A connection between two atoms that are sharing
______7. Covalent Bond
electrons.
p. One or two letters that represent an element
______8. Chemical Symbol
q. Scientific ways to write what elements are in a
compound and how many of each element there are.
______1. Compound
True or False – Bonds and Compounds
Write true or false on the blank provided.
_____ 1. Chemically stable elements have 18 electrons in their outer shell.
_____ 2. Cations have a negative charge.
_____ 3. Cations are elements that have lost an electron.
_____ 4. Cations usually combine with anions.
_____ 5. Covalent bonds are the strongest type of bond.
_____ 6. Covalent bonds are the most common type of bond.
_____ 7. There are a total of three atoms in H20.
_____ 8. There are a total of three different elements in H20.
_____ 9. Elements in the same column have the same Lewis Dot Structure and can
form the same number of bonds.
_____ 10. Lithium can form 1 bond.
Skills Check: Use your periodic table to answer the following questions. Place your
answers in the space provided.
_____ 1.
What is the chemical symbol for sodium?
_____ 2.
What is the atomic mass of nitrogen?
_____ 3.
How many protons does calcium have?
_____ 4.
What does the Cl stand for in the chemical formula HCl?
_____ 5.
How many chemical bonds can neon form?
_____ 6.
How many dots are on the Lewis Dot Structure for Neon?
_____ 7.
If I add a proton to helium what new element will I have?
_____ 8.
When Oxygen forms an Ion will it gain or lose electrons?
_____ 9.
How many electrons will Oxygen gain or lose when it forms an ion?
_____ 10.
How many potassium atoms are in the chemical K2SO4.
_____ 11.
Is the following equation balanced or unbalanced?
LiI+Pb(NO3)2→2LiNO3+PbI2
_____ 12.
How many atoms of Hydrogen would I need to combine with one atom of
Carbon?
Multiple Choice
_____1.
a.
b.
c.
d.
What does an MSDS sheet tell us about a chemical?
It’s chemical formula.
What it can be used for.
Safety information
Where it can be bought at.
_____2.
a.
b.
c.
When balancing equations which statement below is true?
Products are before the arrow and Reactants are after the arrow.
Reactants are before the arrow and Products are after the arrow.
None of the above
_____3.
Why don’t Nobel Gasses (elements in the last column) combine with
anything?
They are not chemicals
They already have enough protons
They do combine with stuff
They have no empty spaces in their outermost orbital
a.
b.
c.
d.
_____4.
Gold, Copper, and Silver are all in the same column. If I told you that
Silver could carry electricity, is a metal, is shiny, is soft, and does not react
very quickly with Oxygen. What could you tell me about Gold?
a. Nothing because Silver and Gold are two totally different elements.
b. It is going to be almost exactly the same as Silver because it is in the same
column as Silver.
c. None of the above
_____5.
a.
b.
c.
d.
e.
When two or more elements combine together it is called a
Compound
Element
Atom
Both a and b
Both a and c