Chem Midterm
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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formula for finding energy | E=hv
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h= ??? | 6.63x10^-34 J/s
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Formula for finding wavelength | C=v/\
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C= ??? | 3.00x10^8 m/s
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covalent bond | sharing of electrons between a nonmetal and a nonmetal
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ionic bond | gain and loss of electrons between a metal and a nonmetal
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metallic | strong bond between a metal and a metal
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group 1= | Alkali metals
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group 2= | alkaline earth metals
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group 17= | halogens
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group 18= | noble gases
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periodic trends for atomic radius | <---- increasing and down
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periodic trends for ie, en, and ea | ^ and ----> increasing
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time si base unit | second
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length si base unit | meter
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mass si base unit | kilogram
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temperature si base unit | kelvin
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amount of a substance si base unit | mole
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giga | (G) 1x10^9 m
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mega | (M) 1x10^6 m
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kilo | (k) 1x10^3 m
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centi | (c) 1x10^-2 m
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mili | (m) 1x10^-3 m
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micro | (ua) 1x10^-6 m
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nano | (n) 1x10^-9 m
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accuracy | how close a measurement is to some accepted or true value % error
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precision | reliability, repeatability, consistency of a measurement + or - uncertainty and significant digits
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element | simplest kind of mtter, all one kind of atom, can't be broken down
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compound | substances that can be broken down chemically
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mixture | physical blend of @least two substances
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solid | definite volume and shape; particles packed in fixed positions
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liquid | definite volume, indefinite shape; particles close together
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gas | indefinite volume and shape; particles @ great distances from one another in constant random motion
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plasma | high temperature, ionized phase of matter as found on the sun
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phase changes that require energy | melting, evaporation, sublimation
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phase changesthat release energy | condensation, freezing
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Dalton | Atomic theory
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Thomson | plum pudding model
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Rutherford | Gold Foil Experiment, nucleus, nuclear model
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Bohr | planetary model
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schrodinger | mathematical; quantum mechanical model
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chadwick | neutron
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fission | splitting a nucleus into 2+ smaller nuclei; nuclear energy and weapons
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fusion | combining of two nuclei to form one nucleus oflarger mass; H-bomb, sun
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principal qn | n- denotes energy level in which the electron is located; indicates distance from nucleus- n increases, distance increases
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angular momentum qn | l- sublevel
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magenetic qn | ml- orientation of electron's orbital; between -1 and 1; max # orbitals for each energy level is n^2
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spin qn | ms- direction of spin of an electron within a magnetic field; each orbital can contain 2 electrons; 1 cw 1 ccw
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
AlanaR
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