Cham final exam with accurate detailed solutions ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
how to count sig figs - correct answer✔✔- Non zeros and zeros between nonzeros count as
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
well as zeros before the first non zeros
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- Zeros after the last nonzero digit are usually not significant unless they are after the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
decimal point ||\\//||
adding and subtracting sig figs - correct answer✔✔round answer to the least number of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
decimal places ||\\//||
multiplying and dividing sig figs - correct answer✔✔For each multiplication or division you ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
should round the answer so that it has the same amount of sig figs as the number with the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
least sig figs ||\\//|| ||\\//||
Density - correct answer✔✔mass/volume ||\\//|| ||\\//|| ||\\//||
Mass - correct answer✔✔density x volume ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Volume - correct answer✔✔mass/density ||\\//|| ||\\//|| ||\\//||
number of neutrons - correct answer✔✔atomic mass - atomic number ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Alpha particles - correct answer✔✔Positively charged particles that can be stopped by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
paper
Beta particles - correct answer✔✔a negatively charged particle emitted from the nucleus of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
an atom during radioactive decay which can be stopped by aluminum
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, Gamma radiation - correct answer✔✔Incredibly strong penetrating power and can be ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
stopped by lead ||\\//|| ||\\//||
average atomic mass - correct answer✔✔Multiply the masses of the isotopes by the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
percentages they represent and sum them up to find the weighted average ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
nuclear symbol notation (atoms and ions) - correct answer✔✔atomic mass (p + n) over ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
atomic # ||\\//||
nuclear symbol notation (radioactive particles) - correct answer✔✔atomic mass (p + n) ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
over atomic # ||\\//|| ||\\//||
C = - correct answer✔✔speed of light 3.00 x 10^8 M/s
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
H = - correct answer✔✔Planck's constant 6.626 x 10 ^-34
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λ = - correct answer✔✔wavelength
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C = λ x f - correct answer✔✔
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E = h x f - correct answer✔✔
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MHz - correct answer✔✔megahertz (FM) ||\\//|| ||\\//|| ||\\//|| ||\\//||
KHz - correct answer✔✔kilohertz (AM) ||\\//|| ||\\//|| ||\\//|| ||\\//||
Hz - correct answer✔✔Hertz sec^-1
||\\//|| ||\\//|| ||\\//|| ||\\//||
how to count sig figs - correct answer✔✔- Non zeros and zeros between nonzeros count as
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
well as zeros before the first non zeros
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- Zeros after the last nonzero digit are usually not significant unless they are after the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
decimal point ||\\//||
adding and subtracting sig figs - correct answer✔✔round answer to the least number of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
decimal places ||\\//||
multiplying and dividing sig figs - correct answer✔✔For each multiplication or division you ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
should round the answer so that it has the same amount of sig figs as the number with the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
least sig figs ||\\//|| ||\\//||
Density - correct answer✔✔mass/volume ||\\//|| ||\\//|| ||\\//||
Mass - correct answer✔✔density x volume ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Volume - correct answer✔✔mass/density ||\\//|| ||\\//|| ||\\//||
number of neutrons - correct answer✔✔atomic mass - atomic number ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Alpha particles - correct answer✔✔Positively charged particles that can be stopped by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
paper
Beta particles - correct answer✔✔a negatively charged particle emitted from the nucleus of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
an atom during radioactive decay which can be stopped by aluminum
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, Gamma radiation - correct answer✔✔Incredibly strong penetrating power and can be ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
stopped by lead ||\\//|| ||\\//||
average atomic mass - correct answer✔✔Multiply the masses of the isotopes by the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
percentages they represent and sum them up to find the weighted average ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
nuclear symbol notation (atoms and ions) - correct answer✔✔atomic mass (p + n) over ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
atomic # ||\\//||
nuclear symbol notation (radioactive particles) - correct answer✔✔atomic mass (p + n) ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
over atomic # ||\\//|| ||\\//||
C = - correct answer✔✔speed of light 3.00 x 10^8 M/s
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
H = - correct answer✔✔Planck's constant 6.626 x 10 ^-34
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
λ = - correct answer✔✔wavelength
||\\//|| ||\\//|| ||\\//|| ||\\//||
C = λ x f - correct answer✔✔
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
E = h x f - correct answer✔✔
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
MHz - correct answer✔✔megahertz (FM) ||\\//|| ||\\//|| ||\\//|| ||\\//||
KHz - correct answer✔✔kilohertz (AM) ||\\//|| ||\\//|| ||\\//|| ||\\//||
Hz - correct answer✔✔Hertz sec^-1
||\\//|| ||\\//|| ||\\//|| ||\\//||
