Download Build an Atom - PhET lab and more Lecture notes Chemistry in PDF only on Docsity!
Name: ______________________________ Period: _______________
Pre-lab for Build an Atom
- You build an atom that has the following components:
3 protons
4 neutrons
3 electrons
Draw a picture of how you would build your atom below: W **hich element is this atom on this periodic table?
The mass of this atom is:** a. 3 mass units Explain what ideas you used to choose an answer: b. 4 mass units ____________________________________________________ c. 6 mass units ____________________________________________________ d. 7 mass units e. 11 mass units The charge of this atom is: a. 0, this is a neutral atom b. - c. - d. + e. +
- You start with your atom: 3 protons 4 neutrons 3 electrons
P
N E
You want to change your atom’s properties. Mark YES if a change will work, and mark NO if it will not work. A. Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon are all different elements. If you want to change the type of element your atom is, you can either: (circle) Add a proton Yes or No or Add a neutron Yes or No or Add an electron Yes or No B. If you want to change the charge of your atom, you can either: (circle) Add a proton Yes or No or Add a neutron Yes or No or Add an electron Yes or No C. If you want to change the mass of your atom, you can either: (circle) Add a proton Yes or No or Add a neutron Yes or No or Add an electron Yes or No
D. Everything around us is made up of different elements. The air has Oxygen ( O ) and Nitrogen ( N ). Plants and people have lots of Carbon ( C ). Helium ( He ) is in balloons. Hydrogen ( H ) is in water. Play until you discover which particle (or particles) determines the name of the element you build. What did you discover?
E. Test your idea by identifying the element for the 3 cases.
- Play until you discover what affects the charge of your atom or ion. What is a rule for making... A. A atom neutral (one with 0 extra charge)?
B. A +ion (positive ion, one with extra positive charge)?
C. A - ion (negative ion, one with extra negative charge)?
- Show a neutral atom, a positive ion, and a negative ion. (These examples should be consistent with the rules you discovered.) All of your examples should also have a stable nucleus. Particles What Element ? What Determines the Element? What’s the Element symbol
Protons: 6 Neutrons: 6 Electrons: 6 ☐ Proton ☐ Neutron ☐ Electron
Protons: 7 Neutrons: 6 Electrons: 6 ☐ Proton ☐ Neutron ☐ Electron
Protons: 6 Neutrons: 7 Electrons: 7 ☐ Proton ☐ Neutron ☐ Electron Number of Particles? Draw Your Atom or Ion What is the Charge? Neutral Protons: __ Neutrons:__ Electrons:__
- Ion Protons: __ Neutrons:__ Electrons:__
- Play until you discover what affects the mass of your atom or ion. Which particles are heavy and which particles are light?
What is a rule for determining the mass?
- Using all of your rules, figure out what changes for each of these actions to an atom or ion. You can test your ideas with the simulation. If you have new ideas, rewrite your rules. - Ion Protons: __ Neutrons:__ Electrons:__ Action What Changes? How Does it Change? Add a Proton ☐ Element ☐ Charge ☐ Mass Action What Changes? How Does it Change? Remove a Neutron ☐ Element ☐ Charge ☐ Mass Action What Changes? How Does it Change? Remove an Electron ☐ Element ☐ Charge ☐ Mass Action What Changes? How Does it Change? Add a Electron ☐ Element ☐ Charge ☐ Mass
