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习题练习:Physics Unit30: Nuclear Physics and Radioactivity



 作者: admin   总分: 71分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月01日 14:22  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the atomic part 6x 4gce6lbwwo); a9(rgiu kw dlla,61icles has the least mass?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom i)sd q0;w9yghk,kn m7 us

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus ctk3p0cy*udvod/py( 6* ioq +sonsists of

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's atomic number is determined by thc0os8m f( 2ki)xlltv77tz5 k ce number of

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass number is determined :2bs wo;+seay2rc0r nes;qtk(3ij d0by the number of

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, and its neutv ad64e/u u7q r-iskzv 36jc/dron number by N, which of the following 6icejv7/az- 4rdu 6usdv3 /kqis correct?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emitted from an unstable nucleus, the at( +cz1+(v s /surpxyxgy 83nu a/ibm2iomic mass number of the nuvxsg(ci rm+b8 nx(i s 3yupau/y2 z/1+cleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in an af4 qpbge * n9,uqw()ehtom is

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  There is a limit to the size of a stable nucleus becausv0kwbq))p22sqjx ku0 d ki7. le of

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same atomic number but with diffn)a*w3 .l7bn.t u - uogykp:aaerent numbers of neutrons are referred to as3)p-kn aya*.oua7gu .blnwt :

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element have nuclei ws 8n/qp mtlveo7g6u,58 dew;uith

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit is deft- 5txc -l+ ywnau)g)kined as

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses 1 3n ct582gck-x(g sscesm+t cof its separate protons and neutrons, the total mass of a stable nucle2msett-g+snx15g s3(cc8 kc cus is always

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to form a stable nucleus, energy adt2aq ;onow7rz91-y is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a nucleus is contributed toxanrk*g9 oa :0

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per )ipo xo3+gi c +y9adam(v34dtnucleon is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per ey+:x/ 7,3zdg2zmpm hna q5i tnucleon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following dxkgk *32w, bd:l9hxdevh50mstatements concerning the nuclear force is false?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic force, thedz/5nv; w z7mdj (m5xf nuclear force between adjacent protons in a nucleus isz7mx; vn5wd /md5z(j f

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrate8lkxqu *s;b m; 1qej,o

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate . -s a.bn9pri9lg:ynm

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet3i i0dth hzw*n:,ykpg ,e5f:trate

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also knowb jx js(i9uu*:n as

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also known abcl1gm8k7 xp bkdbt55d/9f a9s

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will be attt8 5 3t0e tar;2n++0n7pgtwpckdlvxjracted to a

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic mass equal tox dxw(q84faf;

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is exypk cu(g5pcu +7w 3ajt. /jg0mitted from an unstable nucleus, the atomic mass number of the nucle 3j0 wkjtpu xc+(pgga/7 5yu.cus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emakc*p4(sylye rig+ 6, itted from an unstable nucleus, the atomic number of the nucl(l y*eyp4 ir6cg+,kaseus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY 6ng6z3 yz4hvv - Ma) x 931.5 represents

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is most near *vaz sxri2-rmh4/zrs1a.z: r/bo8z qly the same as a gamma ray?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is emitted from an unstable nucle -(go 4jgvey.og i+bp5us,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has thezb6wscpq6aq18 mh / w0 most mass?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radioactive decay, what)o+as.icn *6- s wdp;ulon,k p value is conserved in addition to electric chd u opsa,w nn; p6)lisc-o.*+karge, energy, and momentum?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the halfb0l9h3jaf :c7 ea f) 37ortawz-life of a radioactive substance as it decays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often vk0hm6hl7 m9t7 ; ficyused. This nucleus emits a single beta particle when it decays. When this happens, the resuli7 cyfm;97h60 lvhkm tting nucleus is

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses a magnetic field te n*ss cd *g pm8n-z+bd8jl3:co curve charged particles is a

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector t4g7k)zor +tyg/d i.euhat uses liquid hydrogen is a

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have been replaced by bubble c)m5mdb:vh/ k; )w 6esi 9pfneshambers because

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic f2* p*qphygp k:9ccka(z wh(,number 6 has how many protons?qgz*ck2k fwp,9 : cy(hphp(a*

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass nu0)fpgi8;sbac,d . ts ymber of 14 and atomic number 6 has how many neutrons?s i afgy.)c,0sbdpt8;

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, r /u1ml.jb8e wfespectively. How many nucleons are in onew1 lu8j/b.f me atom?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and masr ef,kp j/y1 uhq.nf/se;(of+n7mn 1zs number for calcium 39 are 20 and 39, respectively. How many electro pfnrny 7 j(mfk;o//u+1qfs ,.enhe 1zns are in one atom?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass numz7:ysm )j 6x tllnj70cber for calcium 39 are 20 and 39, respectively. How may6z)n clmjx 7sl0:t7j ny protons are in one atom?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 0tg95jpo b(u ly4 zto/20 and 39, respectively. How many neutrons ao5guyt z9j4 ob/( lp0tre in one atom?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a 93 Nb nucleus, the number of protons, neutrons, anhlcdky. a,9fuk15 nr.d electrons is 41

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are t06+y9blwh l 9e i5pptshere in the carbon-14 nucleus?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an element of atomic number 15 has an isotope ofihrqnb; wq,mc+ 6 , 0*ntmko)p mass number 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding:,dx7opf3q c c energy of $^4He$.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is required to x2e*b ptphfb n+ b1x 0:rep./sremove one proton from $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goes t k1-s82b3sc um(ypaibhrough alpha decay. Its atomic number is no-ksuy ma(13 b82p ibcsw

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protons and 249 nucid5 e bzm(3om7leons. If it undergoes alpha decay, what are the numbed5ize m o(7mb3r of protons and neutrons, respectively, in the daughter nucleus?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by betavvulmtwcn3v(i v 3 + f0s69,pz decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.00v (l,m3t ns+iufzw 0pv3cvv 963242 u and nitrogen-14 has a mass of 14.003074 u?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic numby8y8u gfzd 2e1er 6 undergoes $b-$ decay. Its atomic number is now

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the half-life of a material is 45 years, how much will be left after 2jlsbrt7k a1x6 hk/-k-8 a85l bpc6z ;dcnsqb100 years?t1knz d5r 62;l6-8/ap8 sj sxahkbbbq 7k-lcc

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the probability that an atom will decay this year if its half-life isv oythit; (;+o 247 h+o; v(tot;yi years?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was certx v-qf0ghs4 y*8t5hagified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample has a half-life of 10 min. What ngupj) ,;s3ezn6t )mgfraction of the sample is l ,ugn6e)zt)p3;msj ngeft after 40 min?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half-life of radioactive iodine-137 is 8.0 days. How maca0oq1oiodpx,(i 2,l *2 nqm gny iodine nuclei are necessary *i1acnodlo q 2qgo,xmpi2 (0,to produce an activity of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substance with a half-life of 3.0 days has an initial activity ofu0eju. u6n8;2wdlrwl,- ws yw u-d;ywsun 8w62w, lel ju.0w r$0.24 \; Ci$. What is its activity after 6.0 days?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The radioactivity due to carbon-14 measured in a piece of ah)uemr1ap:4 8s9+yd k otdv0m wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we w9)0rd14mse+a tpvuk d:hmo 8yould estimate the age of the artifact to be about

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it takesj,jd -kw,bh vv6r)* n $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it takeno7k l4:p kxt q5g44kw a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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