Download Periodic Table

Bay Area Scientists in Schools Presentation Plan
Lesson Name Periodic Table Presenter(s) Vu Ngo Grade Level 5 Standards Connection(s) Physical Science: Atoms, Elements, and Periodic Table Abstract/Teaser: Students will be given a broad overview of atomic structure, various types of elements, and periodic tables. First, the students will learn about the components of an atom. They will know that atoms are made of 3 types of particles electrons, protons, and neutrons. These particles have different properties. The students will build their own atom by using different colored beads. Next, the students will learn how to read basic information on a specific element in periodic table such as atomic number, atomic mass, number electron, etc. Then, students will learn how scientists place elements in periodic table. They will be given a periodic table to identify main groups and they will color those groups. We will close by reviewing concepts learned; an exercise matching definition with concepts is given. Objective: As a result of your lesson, what will students learn? What will they be able to do? ‐ Students will learn that each element is one kind of atom, organized in the periodic table. Also, they will learn about atomic structure, basic information on a specific element, and main groups in the periodic table. They will be able to draw structure of atoms including location of protons, neutrons, and electrons. Vocabulary/Definitions: ‐ Atom: smallest whole particle of an element ‐Electrons: are tiny and very light particles that have a negative electrical charge. ‐ Protons: are larger particles than electrons and have a positive charge. ‐Neutron: are large and heavy particles like protons, but they have no electrical charge. ‐Atomic mass: the total mass of protons, neutrons, and electrons in an atom. ‐Atomic number: is the number of protons found in nucleus of an atom. ‐Group: a vertical column of elements ‐ Period: a horizontal row of elements. Materials: What will you bring with you? ‐ Periodic tables, beads of different colors. What should students have ready (pencils, paper, scissors)? ‐ Each student needs pencils, paper, scissors, and Crayons. Classroom Set‐up: 1. Chalk to write definitions as I discuss them
2. Students should be able to gather up front for the demonstration and sit in groups of 4 or 5 at
desks for discussion. During discussion, the presenter will need access to some space on a
chalkboard.
Classroom Visit 1.
Personal Introduction: ____2_____ Minutes My name is Vu Ngo. I’m a second-year college student and I’m currently participating in a
teaching course at UC Berkeley. I have a great interest in physical science, especially
chemistry. Today, I will give a broad overview of atom, element, and periodic table.
Topic Introduction: ___5______ Minutes Does anyone know what atom is? Can anyone give me some examples of atoms? What are the
components of atoms?
Atoms are building blocks. If you want to create a language, you'll need an alphabet. If you want to
build molecules, you will need atoms of different elements. Each element is a little bit different from
the rest. Those elements are the alphabet in the language of molecules. You would find atoms around
us. For example, you would find oxygen atoms, hydrogen atoms, or nitrogen atoms in the air. Your
body is made up billions of atoms with more than 40 different elements. As you can see everything is
made of atoms. Elements are atoms with specific characteristics. There are about 120 different
elements. How do people identify them?
Today I am going to talk about structure of atom and how scientist placed elements in periodic table. 2. Learning Experience(s): ___30____ Minutes What will you do, what will kids do? Demonstrations, hands‐on activities, images, games, discussion, writing, measuring… Describe in order, including instructions to kids. Components of atoms
1) Let’s take a look at the bead. Let's get closer and closer to the smaller parts of the bead. These small
parts of the bead are called atoms. Anything you see and can feel is made of atoms. All atoms are too
small to be seen with the naked eye or even a microscope.
2) Give definition of these terms. Then demonstrate how to build an atom model.
‐Electrons: are tiny and very light particles that have a negative electrical charge. ‐ Protons: are larger particles than electrons and have a positive charge. ‐Neutron: are large and heavy particles like protons, but they have no electrical charge. Activity 1: Students gather in a group of four or five and they are given a large ziplock with
colored beads and glue. Students work individually to create atoms. Using different colored
beads for the atomic particles, the students can then create a specific element.
* Basic information on a specific element: The elements are placed in specific locations in
periodic table because of the way they look and act. Scientists give basic information to help
readers understand and identify them. Atomic number Symbol of element Atomic Mass 1
H
Name of Element Hydrogen
1.008
‐Atomic mass: the total mass of protons, neutrons, and electrons in an atom. ‐Atomic number: is the number of protons found in nucleus of an atom. Activity 2: with a pencil and piece of paper, the presenter give one of basic information (ex: symbol or atomic number), then students will fill out the rest. * Students will learn groups and periods in periodic table: The periodic table also has a special
name for its columns and rows. When a column goes from top to bottom, it's called a group.
The elements in a group have the same number of electrons in their outer orbital. Those outer
electrons are also called valence electrons. They are the ones involved in chemical bonds with
other elements. Besides that, a row goes from left to right, it’s is called a period. Elements of
the same period have the same number of electron shells.
- Every element in the first column (group one) has one electron in its outer shell. Every
element in the second column (group two) has two electrons in the outer shell. As you keep
counting the columns, you'll know how many electrons are in the outer shell. While each row
represents the number of electron shells. For example, all elements in the first row have one
electron shell, and all elements in the second row have 2 electron shells.
Activity 3: Students will play a game. They will be divided into groups of 4 or 5 people. Each group will
be provided with a periodic table with many missing elements. Students will fill out their periodic table.
First, students will identify which elements are missing, and then they will write all of the missing
elements’ information and glue it in the right spot. After that, they will color the main groups of periodic
table and show their results on the board. At the end, the presenter will check the result and notify which
group is the winner of the game. 3.
Wrap‐up, Connection & Close: _____10____ Minutes ‐ Putting the pieces together –a handout is given for each group. Students will do an exercise
matching definitions with concepts to help them review concept from lesson. (Worksheet is
attached as a separated file)
‐
After the lesson - students should be able differentiate between electron, neutron, and proton.
They should able to read information of a specific element and identify main groups of periodic
table.
4. Follow up: _____5____ Minutes Distribute the worksheet. Student will do it at home to make sure they understand the lecture. (Worksheet is below, named review worksheet) Total 45‐50 Minutes •
Use Periodic Table to obtain information about specific elements
Name
Symbol
Group
Period
Atomic
number
Number of
Electron
Number of
proton
Number of
neutron
Atomic mass
Lithium
Li
1
2
3
3
3
4
6.941
Oxygen
Na
20
16
Aluminum
6
18
Chlorine
Place the definition next to the correct vocabulary word. Glue the definition into the correct box.
Review Worksheet
1)
What is the first element on the periodic table? A. Helium (He)
B. Hydrogen(H) C. Lithium (Li)
D. Argon (Ar) 2)
Oxygen (O) has a greater mass than chlorine (Cl). A. True
B. False 3)
Which of these is a noble gas? A. Chlorine (Cl)
B. Hydrogen(H) C. Neon (Ne)
D. Flourine (F) 4)
All of the following are in the same rows/periods of the periodic table
EXCEPT... A. Beryllium (Be), Oxygen (O), Fluorine(F) B. Hydrogen (H), Helium (He) C. Sodium (Na), Carbon (C ), Chlorine (Cl) D. Lithium (Li), Boron (B), Neon(Ne) 5)
Sodium (Na) has three shells of electrons.
A. True
B. False
6)
Elements in the periodic table are arranged by... A. Atomic Number
C. Number of Neutrons B. Chemical Reactivity
D. Atomic Weight 7)
Which of these things will you NOT find in the periodic table on the wall?
A. Element Name and Symbol B. Atomic Weight C. Atomic number D. Number of Neutrons
8) Rows in the periodic table are called periods and Columns are called groups.
A. True
B. False
9) The atomic number of an element tells you the number of _____ in a neutral
atom.
A. Protons
B. Neutrons
C. Electrons
D. A and B
10)
A.
B.
C.
D.
All of following are is last column except:
Chlorine (Cl)
Flourine (F)
Bromine (Br)
Nitrongen (N)