AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Periodic table

Chapter 7 Chemistry Notes

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Nature
Chemical nomenclature
Ions
Chemical elements
Periodic table
Polyatomic ion
Chemical compound
Molecule
Oxidation state
Hydrogen
Chemical formula

Chapter 7 7-1 symbol? an abbreviation for the name of the element Chemical formula? a type of notation made with numbers and chem. Symbols To indicate the composition of a compound To indicate the number of atoms in one molecule of an element molecule? a single atom, a group of 2+ atoms of the same element, or a group of atoms of different elements that have combined to form a compound Monoatomic molecules? molecules with one atom Diatomic molecules? two atom molecules Hydrogen, oxygen, nitrogen, chlorine, fluorine, bromine, Iodine When writing the formula for a molecule of an element, write the number of atoms in each molecule as a subscript just after the symbol The formula of a compound tells 2 things: The element making up the compound

Periodic Table Notes

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Nature
Chemical bonding
Periodic table
Quantum chemistry
Atomic physics
Chemical properties
Block
Electron
Electrical resistivity and conductivity
Atom
Halogen

Trends: 1. Across? ?the? ?period ? There? ?is? ?a? ?general? ?decrease? ?in? ?atomic? ?radius? ?across? ?the? ?period. - Across? ?a? ?period,? ?proton? ?number? ?increases? ?and? ?electrons? ?are? ?being? ?added? ?to? ?the? ?same? ?outermost principal? ?quantum? ?shell - Forces? ?of? ?attraction? ?between? ?the? ?valence? ?electron? ?and? ?nucleus? ?increases? ?as? ?nucleus? ?becomes more? ?positively? ?charged - Distance? ?between? ?the? ?valence? ?electron? ?and? ?nucleus? ?decreases. 2. Down? ?the? ?group ? There? ?is? ?a? ?general? ?increase? ?in? ?atomic? ?radius? ?down? ?the? ?group - Number? ?of? ?filled? ?principal? ?quantum? ?shell? ?increases

Campbell Biology Chapter 2 outline

Subject: 
Biology
Rating: 
0
No votes yet
SocialTags: 
Physics
Nuclear physics
Baryons
Chemistry
Subatomic particles
Nuclear chemistry
Atomic nucleus
Electron
Neutron
Matter
Periodic table
Chemical element
Technology
Tags: 
Chemistry
Chemical bonding
Physics
Chemical bond
Valence electron
electron
Covalent bond
Hydrogen bond
ion
Chemical reaction
Atomic number
Proton
Technology
#AP Bio #CampbellBiology #Chapter 2 #Outline

SUBATOMIC PARTICLES Proton ? 1 positive charge (P+) Neutron ? no charge (N0) Electron ? 1 negative charge (E+) Nucleus An atom's dense central core, containing protons and neutrons. Electrons move around the nucleus Matter Anything that has mass and takes up space Elements Substance that cannot be broken down by a chemical reaction 92 occur naturally 25 of which are essential for life Bulk elements Required by the body in large amounts C N H O (make up 96% of the body) Trace elements Required by the body in small amounts Ultra trace elements Required by the body in minute amounts Atoms Smallest unit of matter that still retains properties of an element Weight Add proton and neutrons together for weight of nucleus Every proton and neutron weights one Dalton

Chapter 3 Notes

Subject: 
Biology
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Matter
Chemical elements
Periodic table
Nonmetals
Chalcogens
Oxygen
Period
Chemical substance
Chemical reaction
Hydrogen
Education
Technology
Tags: 
biochemistry

BIOL 1020 - CHAPTER 2 LECTURE NOTES Chapter 2: The Chemical Context of Life You must understand chemistry to understand life (and to pass this course)! Elements and Atoms Elements ? substances that cannot be further broken down into other substances (at least by ordinary chemical reactions) every element has a chemical symbol (H for hydrogen, O for oxygen, etc.); this is most familiar from the periodic table Essential elements: elements that an organism needs to live. They are similar along different organism but there is some variation Trace element: elements that are required by an organism in only minute quantities E.g.: Iron (Trace) Oxygen, Hydrogen, Nitrogen, and Carbon(Essential elements)

Chapter 2: Chemical Units and Their Identities

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Physics
Periodic table
Nuclear physics
Chemical properties
Charge carriers
Chemical element
Ion
Atomic nucleus
Proton
Noble gas
Electron
Technology

ATOMS: - made of nucleus (protons (positive charge) and neutrons (neutral charge)) and electron cloud (electrons (negative charge) - smallest particle that still retains properties of element - atomic # - # of protons (unique to each element) (also # of electrons in neutral atoms) - mass # - # of protons + neutrons - atomic mass - actual (average) mass of atom (measured in daltons) - about mass # b/c electrons have very small mass compared to protons/neutrons - isotope - atom w/ more/less than usual # of neutrons ELECTRONS: - elemental form of element is when element is by itself - compound - joint of 2+ elements w/ own set of properties diff. from elements - elements in periodic table are arranged in atomic # and are in 18 columns (groups)

Essential Chemistry for Biology

Subject: 
Biology
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Matter
Periodic table
HTML
Chalcogens
Chemical elements
Nonmetals
Oxygen
HTML element
World Wide Web
Abundance of the chemical elements
Technology

Essential Chemistry for Biology Chapter 2 1. There are 92 naturally occurring elements on Earth. What is an element? substances that cannot be broken down 2. Four of the elements oxygen, carbon, hydrogen and nitrogen make up about 96% of the weight of the human body. Oxygen is the most abundant element in the body. 3. Trace elements are required in very small amounts, but we cannot live without them. 4. Why is the trace element iodine important in the body? essential for hormone produced by thyroid gland 5. Why is the trace element fluoride important in the body? needed component of healthy bones and teeth 6. Know the chemical element for each of the following symbols: C; carbon H; hydrogen O; oxygen

Periodic Table

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Periodic table
Science
Chemical element
Metalloid
Block
Nonmetal
Period
Nature
Technology
The periodic table is a very useful device for chemists and students to use. The periodic table is made of all of the elements that exist. For each element, the atomic number, atomic mass,the symbol, and the element name is in the periodic table. The Periodic table is organized in a way for us to easily tell which elements are metals, metalloids, or nonmetals. The state of the element is also sometimes included. The different groups (columns) have similiar characteristics with the other elements within the group. Group 1 is alkali metals, Group 2 is alkaline earth metals, Groups 3-12 are the transitional metals which also include the inner transition metals, Group 17 is the Halogens, and Group 18 is the noble gases.

Periodic Trends

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Periodic table
Science
Chemical element
Period
World Wide Web
Block
Nature
Technology
Tags: 
Periodic Table of Elements
Trend

Three Important Periodic Trends Definition of Periodic Trend: The tendency of a certain characteristic of an element to increase or decrease as they progresses along a period or group on the periodic table of elements Definition of Term Atomic Radius - One half the distance between the nuclei of identical atoms that are bonded together. Picometers (pm) Ionization Energy - The energy required to remove 1 electron from a neutral atom of an element. kiloJoules per Mole (kJ/mol) Electronegativity - The measure of the ability of an atom in a chemical compound to attract the electrons of another atom in the compound. Trend Across the PT The atomic radii decreases as you move across each period, as you add more protons to help pull the electrons closer to the nucleus.

Periodic Table of Elements

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Periodic table
Technology
Tags: 
Periodic Table of Elements

Group 1 2 ? 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Period 1 1 H 2 He 2 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 3 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 4 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 Mn 26 Fe 27 Co 28 Ni 29 Cu 30 Zn 31 Ga 32 Ge 33 As 34 Se 35 Br 36 Kr 5 37 Rb 38 Sr 39 Y 40 Zr 41 Nb 42 Mo 43 Tc 44 Ru 45 Rh 46 Pd 47 Ag 48 Cd 49 In 50 Sn 51 Sb 52 Te 53 I 54 Xe 6 55 Cs 56 Ba * 71 Lu 72 Hf 73 Ta 74 W 75 Re 76 Os 77 Ir 78 Pt 79 Au 80 Hg 81 Tl 82 Pb 83 Bi 84 Po 85 At 86 Rn 7 87 Fr 88 Ra ** 103 Lr 104 Rf 105 Db 106 Sg 107 Bh 108 Hs 109 Mt 110 Ds 111 Rg 112 Cn 113 Uut 114 Uuq 115 Uup 116 Uuh 117 Uus 118 Uuo ? *Lanthanoids * 57 La

Pages

Subscribe to RSS - Periodic table

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!