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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 particles has a buyluph9030the 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 jbcsa9 s0e.wf ht 1-r4is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus h(.su8e9c5dxywfff 9 consists 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 determic 4xv47zqvg;n*ccc 2xned by the 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 r7*u,iqqs 2mzi ugd 2dhu8zx .0qk83eby 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 neutrd0 cmx x u,gl-z11nnl1on number by N, which of the following is corz1nm,c01xng-ludlx 1 rect?

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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 emi)l g (fedx/jf if5wl5ohrz+5+tted from an unstable nucleus, the atomic mass number of thefiof++rx)5lej l gw5z(/d5f h nucleus

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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 atom i3r;erv0y0g: tlts hj*px 7lg )s

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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 bnw8d6ys1gevfooobflt7- 0)y 0ik1 3gg 7j-uuecause 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 different number2f4.rl*ze5ugp sg, tps of neutrons are reff, 2pg*egrust5p.z l4erred to as

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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 haved9xfs)7k bhn sv* vm4b)p i59tb+ho.p nuclei with

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unitdz+wa; 9u/ vid is defined 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 of its +:ds *6px litxseparate protons and neutrons, the total mass of a stable nucleus is a:6 pi*xs +txdllways

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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 o1n38/.c hky up/jersa stable nucleus, energy 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 contrig++rqio9d6s )8 u2ciql(sukqbuted to

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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 n*+azke 6akt-fucleon 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 nucle tgm4g 0gmc7-:h 5pbzm459wq avhnnb3 on

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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 strpzbslx6 5gr) xw92s1atements 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 electro3 rkb./e6mnw ncv-3-(+ylrv zlz.cfp static force, the nuclear force between adjacent protons in a nucleus /lzlrv zn6e p- 3.cb3+fmk y(wcv-.rnis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrpuxwtk(kl+m 70) k ycc)moa u9 vqp.9nh6.+vtate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateucb)ua2+6 1.qv erqvh

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraowj:0 r6s) wh2wmkb )rte

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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 kny/ejt2)* pqh42v)2gva dzbva/ , d s3k4tbg pgown 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 kn ibqksmex 1t 0s-c1,y2own as

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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 attracted to af cn9g+n5o;p,tkb 0v n

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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 at0pi c12j * grt75e;br nvdfky/ y3gm9uomic mass equal to

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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 a*sak 2ppvr90 emitted from an unstable nucleus, the atomic mass numbe92aa spv *pk0rr of the nucleus

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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 emitted from an unstable nucleus, the a1+; jus9 fz0mh z+ru2mdyn ;ditomic number of the nucleus ndmf+ ;m+9uujizyz;12 0sdhr

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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 - Ma) ic u+ cbv*a9enk)6ay+j/ r4kxx 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 nearly the same wm1 cy7)pmzi5zw0,+whea3w m 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 unstablea a+9 h:u(hhdzw q8q.a nucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the m, fr58knxn/; xksj7rkcr 67zxa n:nc.ost 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 valueyew-.yve ; nhwdywtz,v:/,)z is conserved in addition to electric charge, energy, and momwe.ztvn:yywev w -)y,/z h d;,entum?

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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 half-life of a radioactiwq6k 4 g*khqrm)xx9w(ve 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 used. This nucleus eaysjl8 lp6l75mits a single beta particle when it decays. When syl5 678ajllp this happens, the resulting 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 to curve charged particles ipzu3 yy-licd-v;f x7q:r6, w zs 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 that uses)v 6e6rdjh6gu72 jd zv 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 chambers because-mkj wd (1t 5dr6kzr+r

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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 numbervja;vf3iqi./t 8p8e9tbklpg. . mvt5 of 14 and atomic number 6 has how many proton gav..j5 ;mtvq./ i pi9etl883pvktbfs?

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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 number of 14 and atomic number 6 has how many neut3lo-m igd)cs* ronsicdo3* - glm)s?

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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 caloz*/h is6m.l mcium 39 are 20 and 39, respectively. How many nucleons are in one ato*z/ l. ms6iomhm?

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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 mass number for calcium 39 are 20 6 or7 fdvdlww dds0- 7vx7te(5and 39, respectively. How many electronst7(vx wwfr- 5l6dsed70v 7odd 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 andw741; yx totvv mass number for calcium 39 are 20 and 39, respectively. How many protons are ivt;vyx4o7w 1 tn 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 nukwbc*: p056lezzn h f6mber for calcium 39 are 20 and 39, respectively. How many neutr*6 c0kw6zenlhf p :bz5ons are 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, and ele -bjhj5+cofn1 -bp0 y7djggkr q.d);4g(nbkrctrons 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 there in the caa/tl3f(6/mey xr 2tt xk.phn. rbon-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 iiljgd: e(v qql02/ol)sotope of 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 euocfi5ky(t /k3 ig5; tnergy 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 remove o0wl) r4n7yy75am.yt y*i upzkne 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 through alpha decay. Its atx7frnr6 zl( h9 hk8 8lroiz ;zxw4q21vomic number is nowk z86rrzr(1lhwxn2 q4 97zhx;8liofv

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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 s3cq+8 eeprw0 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughte8rcq30ee s+ pwr 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 q7cf ho6; xasi9 jl+j.decays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has aq .9j+j7sfl6; icho ax 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 number 4y( rsis4i;j3 k 3j- rou3i,nroq,xmp 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, gynh7u h+anrjy( 7+9e how much will be left after 100 yearshgnn 9(7yueh++a7r yj?

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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 nt ./m)irzp.cits half-life is 247 nr mz.icp)t. /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 certjkv+ley- ;x-q ified 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 fraction of the sample 9iqursr f 7,)nis left after 40 ,r 7 rsu)q9infmin?

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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 daov 037m1dv*e)c.st ro gavkz *ys. How many iodine nuclei are necessary tdmtzvscvk*v .o 10gr7o3a *e )o 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 initi7.i8l jwc x59r:ia7n+ 5g7eh/knsgs kyvx(sial activity of ieg757h(98sa :g7+j5 n /kks.i lns vxriw xcy$0.24 \; Ci$. 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 a wooden caske41 1wsjo4 qyck esr-;mt 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 cs-44ewms ykr 11o;jq 5730 years. Thus we would 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 taket, x2u. 6f9j8vl gchlk $4.0 \times 10^{20} \; atoms$ 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 take a*rxr0c 4xq0 sw $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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