RTE 1418 final exam review questions and answers

RTE 1418 final exam review questions
and answers

atomic iistructure ii- iiCorrect iiAnswers ii-•Nucleus ii- iismall, iidense iicenter iithat iicontains
iinucleons:
Protons ii
Neutrons
•Orbitals ii(electron iishells)
Electrons

protons ii- iiCorrect iiAnswers ii-positive iicharges
•Mass iiof ii1.673 iix ii10-27 iikg

what iidistinguishes iione iielement iifrom iianother ii- iiCorrect iiAnswers ii-number iiof
iiprotons iiin iian iiatom's iinucleus


neutrons ii- iiCorrect iiAnswers ii-no iicharge ii
-Mass iiof ii1.675 iix ii10-27 iikg ii(largest)

electrons ii- iiCorrect iiAnswers ii-negative iicharges ii
-Mass iiof ii9.109 iix ii10-31 iikg ii(smallest)
-in iicontinuous iimotion

adding iior iiremoving iia iiproton iichanges ii- iiCorrect iiAnswers ii-the iielement iito iiwhich iithe
iiatom iibelongs


adding iior iiremoving iia iineutron ii- iiCorrect iiAnswers ii-creates iian iiisotope iiof iia
iiparticular iielement


adding iior iiremoving iian iielectron iicreates iian ii- iiCorrect iiAnswers ii-ion

Electromagnetic iiSpectrum ii- iiCorrect iiAnswers ii-3 iiscales: iiwavelength iiin iimeters ii(m),
iifrequency iiin iiHertz ii(Hz), ii& iienergy iiin iielectron iivolts ii(eV)


ionizing iiEM iiradiations ii- iiCorrect iiAnswers ii-x-rays, iigamma iirays, ii& iihigh iienergy
iiultraviolet

, what iicauses iibiologic iidamage iito iiliving iicells ii- iiCorrect iiAnswers ii-ionization

Describe iithe iirelationships iibetween iienergy, iiwavelength, ii& iifrequency iiof iiEM
iiradiations. ii- iiCorrect iiAnswers ii-•The iienergy ii& iifrequency iiof iiphotons iiare iidirectly
iiproportional. iiAs iifrequency iiincreases, iienergy iiincreases iiproportionally ii(& iivice
iiversa)
•However, iiwavelength ii& iienergy iiare iiinversely iiproportional. iiAs iiwavelength
iidecreases, iienergy iiincreases iiproportionally ii(& iivice iiversa)


Properties iiof iiX-Rays ii- iiCorrect iiAnswers ii-•Are iia iiform iiof iiEM iiradiation ii(energy)
•Can iiionize iimatter
•Travel iiin iistraight iilines iiat iithe iispeed iiof iilight
•Cannot iibe iiseen iior iiheard
•Are iielectrically iineutral ii& iihave iino iimass iior iicharge
•Are iinot iiaffected iiby iielectric iior iimagnetic iifields
•Can iibe iiproduced iiover iia iiwide iirange iiof iienergies ii& iiwavelengths
•Release iia iismall iiamount iiof iiheat iiwhen iipassing iithrough iimatter
•Cannot iibe iireflected iior iifocused iiby iia iilens
•Cause iifluorescence iiof iicertain iicrystals
•Produce iisecondary ii& iiscatter iiradiation
•Produce iichemical ii& iibiological iiin iimatter iithrough iiexcitation ii& iiionization

a# ii- iiCorrect iiAnswers ii-# ii(atomic iimass iinumber) ii= iinucleon
(protons ii+ iineutrons)

z# ii- iiCorrect iiAnswers ii-# ii(atomic iinumber) ii= iiproton

Electrical iiStability ii- iiCorrect iiAnswers ii-the ii# iiof ii(+) iicharged iiprotons iiin iithe iinucleus
iiequals iithe iitotal ii# iiof ii(-) iicharged iielectrons


Electron iiBinding iiEnergies ii- iiCorrect iiAnswers ii-determines iithe iienergy iineeded iito
iieject iian iielectron iifrom iian iiatom


Repulsion-Attraction iilaw ii- iiCorrect iiAnswers ii-Like iicharges iirepel•Opposite iicharges
iiattract


Inverse iiSquare iiLaw ii- iiCorrect iiAnswers ii-The iiforce iibetween ii2 iicharges iiis iiinversely
iiproportional iito iithe iisquare iiof iithe iidistance iibetween iithem


Distribution iilaw ii- iiCorrect iiAnswers ii-law iiof iidistribution iistates iithat iinon-conductors
ii(such iias iia iipiece iiof iiwood) iihave iitheir iielectrons iirandomly iidistributed iithroughout
iiwhen iielectrified
•In iiconductors ii(such iias iia iicopper iiwire), iiexcess iielectrons iiwill iibe iidistributed iion iithe
iisurface, iibecause iithe iielectrons iiwill iitry iito iirepel iione iianother