{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

McF1S - Chemistry 107 General Chemistry Chemistry for...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1 1 Chemistry 107: General Chemistry Chemistry 107: General Chemistry for Engineers for Engineers Prof. Jerry Keister
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chapter 1 2 Chemistry: Matter and Chemistry: Matter and Measurement Measurement Chapter 1 Chapter 1
Image of page 2
Chapter 1 3 Chemistry: Chemistry: the science that deals with the composition, structure, properties, and transformations of matter.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chapter 1 4 The Molecular Perspective of Chemistry The Molecular Perspective of Chemistry Matter is made up of atoms . An atom is comprised of protons (positively charged), neutrons (uncharged), and electrons (negatively charged). Atoms which have the same number of protons (and electrons) are identified as belonging to the same element . Atoms of the various elements combine in definite proportions to form pure substances. Atoms of different elements combine to form compounds .
Image of page 4
Chapter 1 5 Elements Elements There are 115 elements known, each given a unique chemical symbol (one or two letters), the first letter capitalized (e.g., He, Be). The name is NOT capitalized.
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chapter 1 6 The earth’s crust consists of 5 main elements. The human body consists mostly of 3 main elements (O, C, and H). All elements originated by nuclear fusion of hydrogen in stars.
Image of page 6
Chapter 1 7 The Periodic Table The Periodic Table
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chapter 1 8 Periodic table – grid of the elements arranged in 7 horizontal rows and 18 vertical columns. Periods – seven horizontal rows in the periodic table. Groups - 18 vertical columns in the periodic table. 1. Groups numbered 1A 8A and 1B 8B (or 1 18). 2. Actually have 32 groups Lanthanides (14 elements after lanthanum) and actinides (14 elements after actinium) are not included in the group numbers .
Image of page 8
Chapter 1 9 General Concepts: Periodic Trends and General Concepts: Periodic Trends and Chemical Reactions Chemical Reactions We divide the Periodic Table into metals, nonmetals and metalloids.
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chapter 1 10 . Three major classes of elements in the periodic table. 1. Metals - solids (except mercury) which are malleable, ductile (can be drawn into thin wires without breaking), and which conduct heat and electricity 2. Nonmetals - may be gases, liquids or solids, some are brightly colored, some are brittle solids, most are poor conductors of heat and electricity 3. Semimetals (metalloids) - properties fall between metals and nonmetals, brittle, poor conductors of heat and electricity
Image of page 10
Chapter 1 11 The periodic table of the elements is the most important organizing principle of chemistry.
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern