october 29 th, 2015 start atomic structure & periodic table bell ringer get homework out on your...
TRANSCRIPT
![Page 1: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/1.jpg)
October 29th, 2015
• Start Atomic Structure & Periodic Table
Bell Ringer
•Get homework out on your desk.
![Page 2: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/2.jpg)
Today’s Purpose:
1. Describe the present model of the atom.
![Page 3: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/3.jpg)
Matter and atoms
Matter:
• Anything that has mass and takes up space.
• All matter is made up of atoms.
![Page 4: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/4.jpg)
Matter and atoms
Atom:
•Basic building block of matter
•Cannot be broken down further without changing the properties of that element
•The smallest unit of an element
![Page 5: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/5.jpg)
Different types of atoms are called elements.
All matter is made of the atoms of approximately 118
elements.
Iron 5%
Earth’s Crust
Oxygen47%
Silicon28%
Aluminum 8 %
Other12%
Humans
Other 3%
Nit rogen 3%
SOURCE: CRC H andbook of Chemistr y and Physics
Oxygen61%
Carbon23%
Hydrogen 10%
Atom Concentrations by Mass
![Page 6: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/6.jpg)
Chemical symbols
A chemical symbol is an abbreviated way to write the name of an element.
For example:
C =
H =
Fe = Iron
Hydrogen
Carbon
![Page 7: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/7.jpg)
Chemical symbols
Chemical symbols always consist of one capital letter or a capital letter plus one or two
small letters.
C Cl CSCs
![Page 8: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/8.jpg)
neutron
electron cloud
nucleus proton
Atoms are made of protons, neutrons, and electrons.
Nucleus – the central region of an atom where most of the atom’s mass is found in protons and neutrons.
![Page 9: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/9.jpg)
Atoms are mostly empty space.
The radius of a atom is about 100,000 times larger than the radius of its nucleus.
If a basketball represented a nucleus…that atom would have a radius of 7.5 miles!
![Page 10: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/10.jpg)
Protons: Positive (+) charge, mass = 1, indicates identity of atom
Neutrons: Neutral (0) charge, mass = 1
Electrons: Negative (-)charge, mass = 1/2000
Found inside
nucleus
Found outside nucleus
![Page 11: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/11.jpg)
B5
Boron
Atomic Number = Number of protons
Boron has 5 protons
![Page 12: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/12.jpg)
Mass Number = Protons + Neutrons
![Page 13: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/13.jpg)
Protons = 7
+ Electrons = ?
N+3
7
+3
4
Charge = +3
![Page 14: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/14.jpg)
Protons = 35
+ Electrons = ?
Br-1
35
36
Charge = -1
![Page 15: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/15.jpg)
Protons = 25
+ Electrons = ?
Mn25
25
Charge = 0
![Page 16: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/16.jpg)
Matter and atoms
Nucleus (+ charge)
Electrons (- charge)
- “orbit” the nucleus
Proton (+)
Neutron (No charge)
![Page 17: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/17.jpg)
Models of the atom
![Page 18: October 29 th, 2015 Start Atomic Structure & Periodic Table Bell Ringer Get homework out on your desk](https://reader036.vdocuments.net/reader036/viewer/2022062409/5697c0031a28abf838cc40a6/html5/thumbnails/18.jpg)
Assignments
• Book reading chapter.
• Atomic Structure (ws)
• Quiz on elements Wednesday, November 4th