Download Parts of the Atom - Dalton Local Schools

Name: ________________________________ Section: _______ Parts of the Atom
1. An atom is made up of:
a. protons & neutrons
b. protons & electrons
c. protons, neutrons, and electrons
d. electrons only
2. Where to you find the protons & neutrons of an atom?
a. in the outer ring
b. in the graphite
c. in the electrons
d. in the nucleus
3. Where do you find the electrons of an atom?
a. in the nucleus
b. in the graphite
c. in regions surrounding the nucleus
d. in the neutrons
4. Match up the parts of the atom with their respective charges.
Neutron
negative
Electron
no charge
Proton
positive
5. TRUE or FALSE
The charge on the proton and electron are exactly the
same size but opposite.
6. TRUE or FALSE
The same number of protons and electrons exactly
cancel each other out in a neutral atom, or an atom that
does not have any charge.
7. Which statements are TRUE?
a. Two protons push each other away or repel.
b. Two protons push each other away or repel.
c. Protons and electrons are attracted to each other because the have opposite
charges.
d. All three of the above statements are true.
e. All of the answers are false.
8. The fact that opposite charges are attracted to each other
a. holds atoms together.
b. causes atoms to split apart.
c. causes energy to be created.
d. causes matter to be destroyed.
9. Why do we sometimes draw a model of the atom with a cloudy-looking region in
the space surrounding the nucleus?
a. Because it is not possible to know the exact location of an electron.
b. Because it is not possible to know the exact location of a neutron.
c. Because it is not possible to know the exact location of the nucleus.
d. Because it is not possible to know the exact location of a proton.
10. The atoms that make up all solids, liquids, and gases are organized into a chart or
table called
a. the element chart
b. the Middle School Chemistry
c. the Periodic Table of Elements
d. the Periodic Table of Elephants
11. Each box in the periodic table contains basic information about an element.
Match up the term with its meaning.
Atomic Mass
A short-hand abbreviation for the element name.
Atomic Number
The average mass of the atoms in an element.
Symbol
The number of protons in the nucleus of the atom.
Element Name
Usually from a Greek or Latin word for the
element or a substance containing the element.
12. Match up the term with its meaning.
Element
a substance made up of all the same type of atom.
Atom
the smallest particle or “building block” of a substance.
13. Which statements are TRUE?
a. The atomic mass of an element is based on the mass of the atoms that make
up the element.
b. The mass of the atoms is based on the protons, neutrons, and electrons of
the atoms.
c. The mass of protons and neutrons are about the same.
d. The mass of electrons is much smaller than the mass of the protons or
neutrons.
e. Only answers a and c are true.
f. All statements are true.
14. What is true about the number of electrons and protons in an element?
a. There is always twice the number of electrons than protons in the nucleus.
b. The numbers of protons and electrons are always changing.
c. The number of electrons in an atom always equals the number of protons in
the nucleus.
d. The number of electrons is less than the number of protons in the nucleus.
15. Atoms of the same element can have different numbers of neutrons than protons.
Atoms of the same element with different numbers of neutrons are called
______________________. The atomic mass given in the periodic table is an
______________________ of the atomic mass of the isotopes of an element.
16. TRUE or FALSE The atomic mass of an element can be greater than
simply the sum of the number of protons and neutrons. This is because some
individual atoms have more neutrons than protons. The atomic mass is based on an
average.
17. Turn to the Periodic Table of Elements in your student planner. In the box
below, include the basic information about an element of your choosing. Be sure to
include and label the element name, symbol, atomic number, and atomic mass.