Particle Lab Slides Particle Lab
The Quest for the Smallest Piece
The Gold Challenge
Imagine you have a piece of Pure Gold.
If you cut it in half... and keep cutting it forever...
What is the smallest piece you can have that is still gold?
Discussion Time: Share your thoughts!
Meet the ATOM
The Heavyweight
Proton
Charge: Positive (+)
Location: Nucleus
0
The Neutralizer
Neutron
Charge: Neutral (0)
Location: Nucleus
-
The Speedster
Electron
Charge: Negative (-)
Location: Cloud
Atomic Anatomy
Where does everything live?
Lab Observation
The Nucleus
The dense center where protons and neutrons hang out. It contains 99.9% of the atom's mass!
The Electron Cloud
The massive empty space surrounding the nucleus where electrons zip around at incredible speeds.
Subatomic Specs Worksheet SUBATOMIC SPECS
Lab Report: Identifying the Building Blocks
Scientist:
Date:
1
The Particle Profile
Complete the specification chart for each subatomic particle found in a standard atom.
Particle Name Electrical Charge Location in Atom Relative Mass Proton Nucleus 1 AMU Neutron Neutral (0) 1 AMU Electron Electron Cloud ~0 AMU
2
Blueprinting the Atom
Nucleus
A: ________________
B: ________________
C: ________________
Labeling Guide:
Label the parts in the diagram based on your knowledge of atomic structure.
Recall: Electrons are located on the outermost rings, while protons and neutrons are tightly packed in the center.
3
Lab Analysis
1. If an atom has 6 protons and 6 electrons, what is the overall total charge of the atom? Explain why.
2. Which part of the atom is responsible for most of its volume (the space it takes up)?
Challenge: If you changed the number of protons in an atom, would it still be the same element? Why or why not?
Particle Facilitator Guide FACILITATOR GUIDE
Lesson 1: Particle Lab
Duration
50 Min
Learning Objectives
Identify the three main subatomic particles: protons, neutrons, and electrons.
Distinguish between particles based on charge, location, and relative mass.
Understand that the nucleus is the dense center containing most of the mass.
Materials Needed
Per Student:
• Subatomic Specs Worksheet
• Red, Blue, & Yellow markers
Classroom:
• Particle Lab Slides
• Digital simulation link (e.g., PhET Build an Atom)
Quick Vocabulary
Atom: The basic unit of a chemical element.
Nucleus: The center part of an atom that contains protons and neutrons.
AMU: Atomic Mass Unit; used to measure the mass of particles.
Instructional Flow
01
The Gold Hook (10 min)
Use the first few slides to present the "Gold Challenge". Facilitate a turn-and-talk. Students often guess "dust" or "invisible pieces." Guide them toward the idea of a fundamental limit—the atom.
02
Particle Profiles (15 min)
Introduce the three particles using the slides. Emphasize the "Memory Tricks":
P rotons = P ositiveN eutrons = N eutralElectrons = Zip around the outside (like planets)
03
Simulation Exploration (15 min)
If using PhET, let students play with the "Build an Atom" sim. Ask: "What happens when you add a proton? What happens if you add only electrons?" If no digital access, use colored beads in a clear container to model the nucleus.
04
Check for Understanding (10 min)
Students complete the Part 3 Critical Thinking on the worksheet. Review the "Volume vs. Mass" concept: The nucleus is like a marble in the center of a football stadium, while the electrons are the "spectators" in the very back rows. Most of the stadium is empty space!
Misconception Alert!
Students often think atoms are "solid" like a billiard ball. Continually reinforce that they are 99.9% empty space. Use the "Stadium Analogy" frequently to help them visualize the scale.
Element Identity Slides The Element Fingerprint
Atomic Number & Mass
Identity Crisis?
What makes an atom Oxygen and not Gold?
The number of PROTONS is the unique fingerprint of an element.
Decoding the Periodic Tile
6
C
Carbon
12.011
Atomic Number
Equal to the # of Protons. Never changes for an element!
Atomic Mass
The total "weight" of the Nucleus (Protons + Neutrons).
How many Neutrons?
The Formula
Mass (Rounded)
= # of Neutrons
Let's Try It!
Lithium (Li) has a mass of 6.94 and atomic number 3.
7 - 3 = 4 Neutrons!
Wait, why round?
Atomic mass is an average. We round to the nearest whole number to find the most common version!
Mystery Element Cards Mystery Element Deck
6th Grade Physics
Set 1: Basic Elements
Teacher Note: Cut these cards out for the student game. One student describes the "specs," the other identifies the element!
Case File #001
Proton Count
1
0
Neutron Count
0
"I am the lightest and most common element in the universe. I power the stars!"
IDENTITY: HYDROGEN
Case File #002
Proton Count
2
0
Neutron Count
2
"I make balloons float and voices high. I have a mass of 4.003."
IDENTITY: HELIUM
Case File #006
Proton Count
6
0
Neutron Count
6
"I am the foundation of all life. You can find me in diamonds and pencil lead!"
IDENTITY: CARBON
Case File #079
Proton Count
79
0
Neutron Count
118
"I am shiny, yellow, and very valuable. My atomic mass is 196.967."
IDENTITY: GOLD
Tile Tracker Worksheet TILE TRACKER
Lab Practicum: Decoding Periodic Tiles
Architect
Date
8
O
15.999
Atomic # = # of Protons
Neutrons = Mass - Atomic #
Remember: Always round the atomic mass to the nearest whole number before subtracting!
Element Tile Atomic # Protons Atomic Mass Neutrons 7 N 14.007
| | | 14.007 | |
|
11 Na 22.990
| | | 22.990 | |
|
13 Al 26.982
| | | 26.982 | |
Challenge: The Shapeshifter
If an atom has 8 protons and its atomic mass is 16, what element is it? Now, imagine you add 1 proton to that atom. What element does it become now?
Big Idea Question
Why is the atomic number considered more important for identifying an element than the atomic mass ?
Bohr Blueprint Slides Electron Shell Stadium
The 2-8-8 Blueprint
Seating Rules
Electrons are like fans in a Stadium. They can't just sit anywhere!
They follow the 2-8-8 Rule :
Row 1: 2 Fans Max
-
-
10+
The Bohr Blueprint
1 Find the Atomic Number (total electrons).
2 Fill the inner shell first (Max 2).
3 Fill the next shells (Max 8 each).
Electron Orbitals Worksheet BOHR BLUEPRINTS
Design Manual: Mapping Electron Shells
Drafted By:
Protons (P)
Neutrons (N)
Electrons (e-)
2 - 8 - 8 RULE
Lithium (Li)
3 Protons | 4 Neutrons
NUCLEUS
Carbon (C)
6 Protons | 6 Neutrons
NUCLEUS
Neon (Ne)
10 Protons | 10 Neutrons
NUCLEUS
Sodium (Na)
11 Protons | 12 Neutrons
NUCLEUS
Shell Stadium Guide ACTIVITY GUIDE
The Shell Stadium Challenge
Lesson 3
2-8-8 Rule
The Concept
This activity uses a "Stadium" analogy to help students internalize electron shell capacities. Electrons are "fans" who want to be as close to the "celebrity nucleus" as possible, but each "row" has a strict maximum capacity.
Materials
Blue painter's tape (or chalk)
Large open space (floor or playground)
"Element Prompt" cards
The Stadium Setup
Tape 3 concentric circles on the floor:
Inner Circle: 2 spacesMiddle Circle: 8 spacesOuter Circle: 8 spaces
Gameplay Instructions
1
"Filling the Seats"
Call out an element (e.g., "NEON!"). Neon has 10 electrons. 10 students must rush to the stadium and fill the seats following the 2-8-8 rule. They must fill the innermost circle completely before anyone can sit in the next circle.
2
"Stability Check"
Once students are seated, the rest of the class checks the configuration. Ask: "Is the inner circle full? How many more can fit in the outer circle?"
3
"Electron Displacement"
Call out a change: "We are now POTASSIUM! We need 19 electrons!" Students must adapt. This demonstrates that more protons = more electrons = more shells.
Pro-Tip for 6th Grade
Focus heavily on the fact that electrons hate being crowded but love being close to the nucleus. This sets the stage for chemical bonding in future years!
Isotope Insight Slides Heavy Atoms Mystery
The World of Isotopes
The Mystery Boxes
Two boxes. Both labeled "CARBON".
One is significantly Heavier than the other.
How can they be the same element but weigh different amounts?
C-12
C-14
Isotopes: The "Same but Different"
The Definition
Isotopes are atoms of the SAME element that have a DIFFERENT number of Neutrons .
• Protons: Always the same
• Neutrons: Changed!
• Mass: Changed!
Carbon-12
Carbon-14
Why are there Decimals?
Ever wonder why Atomic Mass on the periodic table is 12.011 and not just 12?
It's an AVERAGE!
Since most Carbon is C-12, but a tiny bit is C-14, the average "weight" is slightly higher than 12.
Like a class average score on a test!
Heavy Atoms Worksheet HEAVY & LIGHT
Case Study: Isotope Investigation
Investigator:
Quick Reminder
Isotopes have the same number of protons (Atomic Number), but a different number of neutrons . This changes their total Atomic Mass.
1
Hydrogen's Family
Isotope Name Symbol Protons Neutrons Mass Protium H-1 1 0 1 Deuterium H-2 1 2 Tritium H-3 2 3
2
The Carbon Mystery
Carbon-12
Mass = 12 AMU
Carbon-14
Sketch the nucleus for Carbon-14 here.
Mass = 14 AMU
1. In Carbon-14, how many NEUTRONS did you draw? Why?
2. Chlorine has an atomic mass of 35.45 on the periodic table. Which isotope do you think is MORE common in nature: Chlorine-35 or Chlorine-37? Explain.
Isotope Answer Key ANSWER KEY
Heavy & Light Worksheet
TEACHER USE ONLY
Section 1: Hydrogen's Family
Isotope Name Protons Neutrons Mass Protium (H-1) 1 0 1 Deuterium (H-2) 1 1 2 Tritium (H-3) 1 2 3
Section 2: Carbon-14 Sketch
Visual Verification:
Students should draw exactly 6 Protons (identity remains Carbon) and exactly 8 Neutrons (14 total mass - 6 protons = 8 neutrons).
Section 3: Analysis Answers
Q1: How many NEUTRONS in C-14?
8 Neutrons. Since it is still Carbon, it must have 6 protons. 14 (total mass) - 6 (protons) = 8 neutrons.
Q2: Chlorine-35 vs Chlorine-37?
Chlorine-35 is more common. Because the average atomic mass (35.45) is much closer to 35 than it is to 37, the lighter isotope must be the most abundant version found in nature.
Note: Students often struggle with the "average" concept. Remind them that if a class of 10 students has 9 students scoring 100% and 1 student scoring 0%, the average is 90%—it's "weighted" toward the most common score.
Atomic Zoo Project Sheet THE ATOMIC ZOO
Culminating Design Project
Project Status
In Progress
The Mission
Welcome, Lead Architects! The Global Science Council is opening a new "Atomic Zoo" and they need you to build the exhibits. Your task is to construct a perfect 3D model of one of the first 18 elements. If your atom isn't built exactly to spec, it will suffer from "Atomic Decay" and the exhibit will fail!
Exhibit Requirements
Accurate Nucleus: Correct number of Protons and Neutrons.Bohr Model Shells: Electrons must be in their correct shells (2-8-8 rule).Identity Tag: A label showing Element Name, Symbol, and Atomic Number.Color Coded: Distinct colors for Protons, Neutrons, and Electrons.
Architect's Toolbox
You may use any of these materials to build your exhibit:
Pony Beads
Pipe Cleaners
Cotton Balls
Cardboard
Clay/Dough
Paint/Markers
Assigned Spec Sheet
Assigned Element
________________
Protons (P)
________
Neutrons (N)
________
Shell 1 (Max 2)
________ e-
Shell 2 (Max 8)
________ e-
Shell 3 (Max 8)
________ e-
Master Architect Rubric Architect Grade
Master Architect Rubric
Total Possible
20 pts
Category Master Architect (5) Apprentice (3) Novice (1) Nucleus Integrity Correct number of protons AND neutrons. One particle count is slightly incorrect. Particle counts are missing or wrong. Electron Layout Correct 2-8-8 configuration in 3D shells. Correct total count but incorrect shell placement. Electrons are placed randomly or missing. Technical Specs Includes Name, Symbol, and Atomic Number tag. Identity tag is missing one key piece of data. No identity tag or specs provided. Craftsmanship Model is stable, color-coded, and neat. Model is somewhat messy but identifiable. Model is fragile, falling apart, or sloppy.
Review Board Comments
Total Score
_____ / 20
Gallery Showcase Slides The Gallery Showcase
Grand Opening: The Atomic Zoo
Peer Review Protocol
As you walk through the Zoo, you are acting as Stability Inspectors.
Check for "Decay":
• Are the protons in the center?
• Are there more than 2 in Shell 1?
• Does the tag match the model?
Feedback Loop
"I like how you built the _______ because _______."
"One thing to check is the _______ because _______."
The Big Atomic Picture
Now that you've seen the first 18 elements, what patterns do you notice?
Identity
How did the models change as the Atomic Number increased?
Structure
Why are the shells so important to the size of the atom?
