10/9/12
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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| 4 Steps of Scientific Method | observations
testing hypotheses
developing theories
scientific laws
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| Chemistry | study of the composition of matter and the changes that matter undergoes
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| Organic or inorganic | has to have carbon to be organic
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| Law of conservation of mass | in any physcal or chemical mass is never created
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| 3 states of matter | solid- definite shape and volume
gas-takes both shape and volume of its container
liquid-indefinite shape flow yet fixed volume
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| several indications of chemical reaction | transfer of energy color
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| Accuracy | close to the right answer
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| Precision | many times you get the same thing over and over again
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| atomic number | number of protons in the nucleus of an atom of an element
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| mass number | total number of protons and neutrons in the nucleus of an atom
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| atomic mass | weight average of the masses of the isotopes of an element
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| isotope | atoms of the same element that have the same atomic number but different atomic masses due to a different number of neutrons
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| democtritis | name atom
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| dalton | atomic theo
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| rutherford | nucleus
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| millikan | electric charger
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| chadwick | neutron
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| thomson | electron
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| bohr | energy level
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| atomic mass units are based on the------ One amu is equal to ------- | Carbon + 1/2 of Carbon 12 atom
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| modern model of the atom | mostly empty space
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| what is quantum | amount of energy need to mannel electron from one energy level to another
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| Describe each quantum number with word, symbol | Energy level (n) 1-7
Sub Level (l)
orbital (m)
Spin + or -1/2
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| how many s,p,d,and f orbital are there | s=1
p=3
d=5
f=7
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| How many electrons may be in each energy level | 1=2
2=8
3=18
4=32
5=50
6=72
7=98
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| different types of chemistry | physical-area that deals with the mechanism rate and energy transfer
analytical chemistry-focuses on the composition of matter
biochemistry-processes that takes place in living organisms
inorganic- dont contain carbon
organic-contain carbon
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Created by:
KatReid
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