What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2....
-
Upload
melina-allen -
Category
Documents
-
view
222 -
download
2
Transcript of What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2....
![Page 1: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/1.jpg)
What is an atom?Catalyst1. What are the 3 subatomic particles?Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton), Neutral (neutron), Negative (electron)3. Where are they found in the atom?Nucleus (proton and neutron), Electron cloud (electron)
11/7/11
26L continued
![Page 2: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/2.jpg)
What is an atom?Learning Target (Reminder)LT #2: I can explain the different parts of an atom and where they are located.
*What is an atom Powerpoint*Atom animation http://web.visionlearning.com/custom/chemistry/animations/CHE1.3-an-atoms.shtml
11/7/11
26R continued
![Page 3: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/3.jpg)
26R continued
11/7/11
What is an atom?Subatomic Particles TableComplete the table below.
![Page 4: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/4.jpg)
26R continued
11/7/11
What is an atom?Subatomic Particles TableAnswers: Copy/correct your answers.
![Page 5: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/5.jpg)
What is an atom?Learning Target Self-AssessLT #2: Rate yourself on a 3, 2, 1 scale. 3 is “I really know this” and 1 is “I don’t really get it.” Hold up your 3, 2, 1 with your fingers.
11/7/11
26L continued
![Page 6: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/6.jpg)
Atomic TheoryLearning Target #3LT #3: I can describe the different atomic theories and how they have developed over time. Brainpop Atomic Model:http://www.brainpop.com/science/matterandchemistry/atomicmodel/
11/7/11
27R
![Page 7: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/7.jpg)
Atomic TheoryIndependent Reading p. 125Read p. 125-128 and fill out the following table:
11/7/11
27R
Atomic Theory Explanation/Description
Dalton’s Atomic Theory
Thomson’s Model
Rutherford’s Model
Bohr’s Model
Cloud Model
Modern Atomic Model
![Page 8: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/8.jpg)
Atomic Theory11/7/11
27R
Atomic Theory
Explanation/Description
Dalton’s Atomic Theory
All elements are composed of atoms that can’t be divided. Atoms of the same element are exactly alike and have the same mass.
Thomson’s Model
Found that atoms contain negatively charged particles and reasoned that there must be positively charged particles as well.
Rutherford’s Model
Through his experiment, discovered the nucleus of an atom and called the positively charged particles protons.
Bohr’s Model Added that the electron has specific orbits around the nucleus(like planets around the sun )to Rutherford’s model.
Cloud Model Electrons do NOT circle the nucleus like planets. Instead, they can be anywhere in a cloudlike region around the nucleus, depending on energy level (electron cloud).
Modern Atomic Model
Neutron discovered in 1930s. At the center of the atom is a tiny, massive nucleus containing protons and neutrons. Surrounding the nucleus is a cloudlike region of moving electrons.
![Page 9: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/9.jpg)
Atomic TheoryLearning Target Self-AssessLT #3: Rate yourself on a 3, 2, 1 scale. 3 is “I really know this” and 1 is “I don’t really get it.” Hold up your 3, 2, 1 with your fingers.
11/7/11
27L
![Page 10: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/10.jpg)
The Periodic TableLearning Target #4LT #4: I can read and understand the periodic table of elements and explain all the different sections. Brainpop Periodic Table:http://www.brainpop.com/science/matterandchemistry/periodictableofelements/
11/7/11
28R
![Page 11: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/11.jpg)
The Periodic TableVocabulary and ReadingWrite the definitions of the following words, found on p. 129-137.Atomic numberIsotopesMass numberAtomic massPeriodic tablePeriodGroupChemical symbol
11/7/11
28R
![Page 12: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/12.jpg)
The Periodic Table
Catalyst1. What are the periods on the periodic table? What are the groups?Periods are the horizontal rows and groups are the columns.
2. Define atomic number and atomic mass.Atomic number is the number of protons and atomic mass is the number of protons and neutrons.
11/9/11
28L
![Page 13: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/13.jpg)
The Periodic TableLearning Target #4 (Reminder)LT #4: I can read and understand the periodic table of elements and explain all the different sections.
Now, please put everything away except a pencil and a separate sheet of paper.
11/9/11
28R
![Page 14: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/14.jpg)
IV. The Periodic Table
![Page 15: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/15.jpg)
A. The periodic table is table/chart in which the elements are arranged in the order of increasing atomic numbers.
B. The periodic table was developed by a Russian chemist named Dmitri Mendeleev.
![Page 16: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/16.jpg)
C. Reading the periodic C. Reading the periodic tabletable
8 26
OOxygen
15.9994
Atomic number
Element symbol
Element name Atomic
mass
Number of Electrons in each shell
![Page 17: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/17.jpg)
![Page 18: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/18.jpg)
D. Using to periodic D. Using to periodic tabletable
• Always look at the key for each periodic table used.
1. Atomic number - is the number of protons and electrons for each atom. It is also the order in which the modern periodic table is set up.
2. . Atomic mass- is the sum of the protons and neutrons in an atom.
![Page 19: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/19.jpg)
Quick Review!
1. Atomic Mass: Add what two things?2. Atomic Number: is the number of what two
things?
![Page 20: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/20.jpg)
Quick Review!
1. Atomic Mass: Add what two things?
Protons + Neutrons = Atomic Mass(Remember: Pete and Ned from the Atoms family!)
2. Atomic Number: is the number of what two things?
Protons and Electrons (Remember: P.E.)
![Page 21: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/21.jpg)
E. The Number of Neutrons in an Atom1. To find the number of neutrons in an
atom use the following formula:
Neutrons= Atomic Mass-Atomic Number
Ex. To find the number of neutrons in a Carbon atom you would subtract the
Atomic Mass (12) - Atomic number (6) this =
6 neutrons
![Page 22: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/22.jpg)
Practice finding Practice finding neutrons!!!neutrons!!!
• Find the number of neutrons in the following elements:
1. (Lithium) Li= 2. (Sodium) Na= 3. (Potassium) K=
![Page 23: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/23.jpg)
Practice finding neutronsPractice finding neutrons
• Find the number of neutrons in the following elements:– Li= 6.9(round to 7)-3= – Na= 22.9(round to23)-11=– K= 39.1(round to 39)-19=
Li= 4 neutrons
Na= 12 neutrons
K= 20 neutrons
![Page 24: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/24.jpg)
Using the electron ringsUsing the electron rings
• Each ring has a set amount of electrons. You cannot over fill a ring but you can under fill a ring.
pn
2e
8e
18e 32e
P6n6
2e
![Page 25: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/25.jpg)
Electron Ring Practice!!!Electron Ring Practice!!!
Find the electron rings of the following elements.
• Li• K
Hint: Find out how many electrons each element has first! (What can
you look at?...)
![Page 26: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/26.jpg)
Electron Ring Practice!!!Electron Ring Practice!!!
Find the electron rings of the following elements.
• Li =Atomic # 3
• K=Atomic # 19
P3n4
2 1e
P19n20
2e 8e 9e
![Page 27: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/27.jpg)
VI. Families and periodsVI. Families and periodsA. The number of rings and number of
electrons on the last ring of any given element determines it position on the period table.
B. Groups- vertical columns*Similar chemical properties
![Page 28: What is an atom? Catalyst 1. What are the 3 subatomic particles? Proton, neutron, and electron 2. What are the charges associated with them? Positive (proton),](https://reader035.fdocuments.net/reader035/viewer/2022062407/56649dc85503460f94abd47b/html5/thumbnails/28.jpg)
C. Each horizontal row on the periodic table is called a period. *Not alike, but have the same number of energy levels