Download atoms and elements

Name ______________________________________________ Date _______________ Period __________
Atoms and Elements
An atom is the smallest particle into which an element can be divided and still maintain the properties of that
element. All elements are made of atoms. So what’s an element? What makes one element different from
another? Let’s find out!
Vocabulary: First things first, let’s look at the structure of an atom. Look up definitions of the following
parts of an atom and record your findings below. Some things to look for include: Location in the atom?
Mass? Charge? Use www.dictionary.com to get started. You will complete the diagram and definitions for
atomic number and atomic mass as a class.
Proton:
Diagram:
Neutron:
Electron:
Atomic Number:
Atomic Mass:
Investigative Question: What makes each element unique?
For each of the elements listed below find the following information: element name, number of protons,
number of neutrons, number of electrons, atomic number, atomic mass, and number of energy levels. Use the
website: www.chemicalelements.com/ to get started.
Example: H
Element Name:
Number of Protons:
Number of Neutrons:
Number of Electrons:
Number of Energy Levels:
Atomic Number:
Atomic Mass:
Be
Element Name:
C
Element Name:
Number of Protons:
Number of Protons:
Number of Neutrons:
Number of Neutrons:
Number of Electrons:
Number of Electrons:
Number of Energy Levels:
Number of Energy Levels:
Atomic Number:
Atomic Number:
Atomic Mass:
Atomic Mass:
Mg
Element Name:
S
Element Name:
Number of Protons:
Number of Protons:
Number of Neutrons:
Number of Neutrons:
Number of Electrons:
Number of Electrons:
Number of Energy Levels:
Number of Energy Levels:
Atomic Number:
Atomic Number:
Atomic Mass:
Ca
Element Name:
Atomic Mass:
Br
Element Name:
Number of Protons:
Number of Protons:
Number of Neutrons:
Number of Neutrons:
Number of Electrons:
Number of Electrons:
Number of Energy Levels:
Number of Energy Levels:
Atomic Number:
Atomic Number:
Atomic Mass:
Atomic Mass:
Conclusions…
Analyze the data you collected. What patterns do you see within each element (differences and similarities)?
Look at the number of protons, neutrons, electrons, etc. What do you notice when you compare the elements
to one another? Write your statements in the space below:
 Within an element:
 Comparing elements:
 Answer the investigative question: What makes each element different?