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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 the lrr+r h ed.(l0beast 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 +xjh 9lkm f0s5m*rj.vs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisa)q j; 2hm0p.fskfy; sts 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 j5s jp l.veuk8 (1ycz6is determined 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 detik9t+/ ex4 im lra gh:zn:p c6j;ghp;.ermined by 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 a*f svs0wl.9q ltomic mass by A, and its neutron number by N, which ofw 0. s9*lqsflv the following is 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 ato yolpg;9(86e giwb s5nmic mass number of the nucleus9(s6p b5;glg 8yoe nwi

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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 axou vr44c l-;jv/n)r 0b6d imrtom 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 b6e ofn )cg48c0qcxru8ecause 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 atomjs7u1 ctw7/ ::da 2wjdto .mqf2tra 75 7taowbic number but with different numbers of neutrons are referremtj /7t2rqt: bsc7 w7a 7t5 ow 2jfowadu:1da.d 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 have nuc7wlgc;1 sglg)lei 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 unit is der hj f c,,d*jo2nhuabj+t+6i9fined 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 separate protons and neutr 5ytgw9 r4(uy-v .pnsbons, the total mass of a stable nucl(pr9y bw . 4ugn-5styveus 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 stau 2 )im22dkwcable 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 contr:1z k5-rbozvj)g xo0tibuted 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 nucl 45ssyn4 oi2pmie jxb82+hca4eon 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 -0;o wkkf242wyif aianucleon

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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 sh n94pzqot )e)tatements 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 elecja5 du47oa j beqvy9,b53 b)xwtrostatic force, the nuclear force between adjacent protons inq db3bxaaw7 ,5jju 4bo5v)y9e a nucleus is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrated8oqv4l lmg+z4-e i9k

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratk46(zgh8h xwcnn r3y7e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet7mq,4vir. cqz rate

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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 known a1t waet9c8 7tss

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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 axddk w*3ry+ qodt;kc0j1b 5:us

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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 attractpakv0l4a;v3 32h qed med 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 tow aeqyk 209k.q

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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 emitted from an unstable nucleus, theq5);hx hobq s;;kg z2p atomic mass number of 2khh)5;q z;o;xgs pqb 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 nuc.*eex5, qt o vwhxgo*9leus, the atomic number of the nucleu5x*.eqeto*w x v9 gho,s

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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) x 931.5 represen8gv xjc:o*x+/ 8-brnb ap/x kkts

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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 followin ;gu;cd qp7d2ivvy0 s*g is most nearly 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 fro js,eve(z2yd + :ut458tq7qdbw;mg uqm an unstable 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 most mass?zdi7+cq * 3t m- wap (9g:hwlvydz;ev4

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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 value is consuo:qyj,1uy ccc3 +g e60thf:kerved in addition to electric charge, energfguyuqh:c3 +c 0e ko,:ty 1c6jy, 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 half-lao:3j3 )gp; fbfsui-bife 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 ofteze3 *4bxj90 yflpfdy s;c bgp2.5*nly cn5w z0n used. This nucleus emits a single beta particle when it decays.*d*2; 0f9b z.x5ys lywpy jcbnfc0pl54 eng3z When 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 t87sr 6j+ ,i khrepi0tuhat uses a magnetic field to 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 that uses liqu,cqkl(ijw z;. id 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 bubtz 4kp2 men+oei4*g 1gble chambers 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 number 6 has how many pr kwp1y)k40tes otons?0 k)w1py tks4e

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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 nml3gie d 2mo26umber 6 has how many neutronsed32m 6ol2mi g?

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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 cas4p,6g 8md mup g*t:fim,ca+alcium 39 are 20 and 39, respectively. How manysamtm,upg6 ,+ mif:*8d 4ac pg nucleons are in one 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 mass number ff26 x*zmzf1 qq9vkbc(or calcium 39 are 20 and 39, respectively. How many(1z 9qckfxvfz 26qbm * electrons 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 number for calcium 39 are 20 and 39, respec1 eqbpfwx8q8ay sd:sq0 rg 2o a,mj695tively. How many protons area pybqfq9:r2g, 8e8w5a10m 6sojdxsq 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 f s*5l9gak,qfku)z: p o ;rtew/or calcium 39 are 20 and 39, respectively. How many neutrons are in one atomp :/ ,qz;t9elsua)owg fk*5kr?

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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 electrons ia g4) v(5 hj*s2slqhkss 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 ck : 0z5l;ljsnthere 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 isot rnt ji90xb/8tope 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 energ d1vpbn( ) mvci/op5j)y 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 one u 2+fpbaqa yfb)w*e(:-m/b hyproton 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 atomic nu61oq+*v 12tmjlcp9jw a cij2j mber is lt + 1ji1c*woqcavp9 j2jm2j6now

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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 nucleons. If it undergoeay2z.0bvt n7d q )hky,s alpha decay, what are the number of phybk .y qvan7,t) zd20rotons 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)p:,/coky2/ xwww b*ib hpp.t beta decay. How much energy (in Mkw*po2twppy b :,.xw/ / h)cibeV) is released if carbon-14 has a mass of 14.003242 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 number 6k wa9qr/tun)9 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 afte.-+len8uo(j8y1 ,w wsy kfwl pr 100 years?luy w,j.8k -yle81f+w(swp no

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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 hl.o6:jd, wbhtk 0xrr;8vp:uc alf-life is 247 wbh:ut6pjd0:;,8rx . korcv l 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 wasp aj-7:ee0(odmx4 bfu certified 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 isl0wvkk5q3qmgbqe-ff a 1d:8: left a0b mkk- 81gad3q5fq l:fqw v:efter 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 iorxq9c*8 4o.c xdv kqq9dine-137 is 8.0 days. How many iodine nuclei are necessary to produce an acti9rxq489kcx*oc .dq qv vity 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 oz6 ,5oa. nhebmf 3.0 days has an initial activity of ahmoe 5n.b,z6$0.24 \; Ci$. 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 my3u .vi(p+ mq3.myoa peasured in a piece of a 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 would estimate the age of the ar+mp o mv.a qpiyu33y.(tifact 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 taksvidi7( 3 wa2le $4.0 \times 10^{20} \; atoms$ 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 tak nag(eqv):ge,tr; +n ve 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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