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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 parfsv1 y7hzw q)5ticles 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 gndkgnr a6:( b57jf7l is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consist+ . fembl7tqg)s 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 b s1*c9px ri q bxyvvlc(69.a)uy 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 by the n:9r 7q ufvb0wc0x8ay/ :bhqp humber 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 numbe5wfrl7g v s)9gr is given by Z, its atomic mass by A, and its neutron number by N, which of the fof597 wr gvsgl)llowing 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 unstabj2gr: wz9x5 grle nucleus, the atomic mass number of thj z9:rg5wxg 2re 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 tq(+j rhi,8 wd cd8)qris

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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 because cudj-a (;5c 6x8kvjdxof

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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 difcvm:m5lu4j5cnp 3 9c y:*,ong :.jw vot s3tjdferent numbers of neutrons are referred to mco.n:g93ov wncj4:tl5,cjs3j5 p m*yt: duv 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 tq4m68 tr9 jfw r8/mpgnuclei 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 defined 8g415;zc+z(a)hf p yalgzix( a8zef kas

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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 neutrons, the total mass9 )xaz hvbg6hqac16) 0.eebvo of a stable nucleus is alwa) 1) vvx9 6b6gbaa0.eehzoc qhys

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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 cu y y6.. ;bh*uz(3tx hwt8kriis

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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 7 xyy: q)bgj1gg 2s),nzr9miwnucleus is contributed 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 nucleon 0tdbc3; 3v jxfis

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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 nucyh6*;thm xzc kq;n-5tkves90+:xa uh leon

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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 statemec/e+m8 h xf1tss1nym *nts 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 forc h1 re.ztdx80je, the nuclear force between adjacent protons zrt18e0.jhx d in 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 penetrate a t v)qr+ilwfcn*d+69

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratcz ce bpkm3,7)zx1sxa zrt0;1 e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrae1ij 5y2-+uf7je *ntvek whd1te

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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 ka*h umd 6jrv,w dm,u/gig+,4y nown 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 :kil: *o(cst cwidf(+ 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 alb xis61 u;tr tpxc;u4:*36e8ytxiqb9ewa o ,

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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 t*h 0m,atsqi)dg6szo v8 d/9fh o

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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, the atomic mam 1gvru0 x-t8njv7+ alss number mr v8a70ul+j tx1- ngvof 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 /1dpor5-jncdj:+m. apo al8; k.wkg bemitted from an unstable nucleus, the atomic number of the .jr5:p1cb+agd -kmdlwa p/o 8o;.jnk nucleus

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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 u+ve/u7:tmdnm5g8h w- 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 nearly the same as a gamma raykf l;mb0kp03 builu(:lk51 0zsxrq 7j?

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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 anki ag3 n7f4o;w 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 mwt af ,imlk 9. .putzc(0c0jn7ass?

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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 conserved in addition tdyl(yzv; gq7 3i) uos,o elsygy u3vi(z 7q o),;dlectric charge, 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 half-life of a radioactive substance as it deca hm4ialvrh5( ri) r(1qys?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carpgu4 7rqrlv .tnj v+1 uj6-4ofbon-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, the resulti-n jf4j6 pg1rur v+lo7u. tvq4ng 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 particlxy7(x j/ml 4gles 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 liquid hrxee t;h 5;x1cydrogen 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 chambeg bhv 0k3((gtdrs 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 k4msytu93/7 pcplv 6/jlaw :ynumber of 14 and atomic number 6 has how many protons?93 ykuy a7lw6pj tc:mpsv4l//

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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 numbmqa;nttu 9-wj, f(b /eer of 14 and atomic number 6 has how many neutroq9 /tnt-ambj,eu ;wf(ns?

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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, +dcatq wvif w ;*f6t(ak glfs:r,6*w6 respectively. How many nucleons are in one atoqtrlg6(vk f6f:+dac*ta 6ww; i,fsw*m?

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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 fgi3 m nneo5t14 4s0 ok6wsk-kior calcium 39 are 20 and 39, respectively. How many electrons ak so4-nt i60 4m k3wsoeink5g1re 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, respv t rqy(4j,am gp-p pv38ti):pectively. How many protons are in 8rmp i vt4at3:(ppyg,vj pq-) 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 20 and 39ffvn 19v8(vp9v zj9 ri, respectively. How many vn9 9rfpvi8f9v1jvz( neutrons 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 be9 vr ka(/z.sv+p l:xnumber of protons, neutrons, and 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 there in the carb+db7vy9.vu- y/oea iz98vg rd on-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 5z 5r xz.6mj,jpjp6xvhas an isotope 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 a1srzyrlakko(;0k 5* 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 proton fl ,hk)cjs 56werom $^9Be$?

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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 num;abl99 nngl1 hze3u p;ber 88 goes through alpha decay. Its atomic number isl b;1pznl 9;u3eg9han now

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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 pk1h/lydxwf.oifxd1sq-:jt8 ; qx:9 and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respecl1x1;qfj-.qxd: 9hoxps 8t:kdiy/ wftively, 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 nucl7+k17brx cva jtyhv *xg;)va;eus by beta decay. How much energy (in MeV) is1ax7 rv a;+c)bkxgv*jh7ty; v 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 atomicz. 1 khatag6(a3x* cjha8a0l auzc:7o number 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 wi/v:xs s gmzlzrx8+.8 ill be left after 100 yearx vx/8r.+mgs z :sl8zis?

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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 p-0-b4scwi xcvva;:h this year if its half-life is 247 yearsix v-b4v h:0-s w;pcac?

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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 certified atd6v*b e lt4/r,xe xbjz,kcb* 3 $10 \; \mu Ci$ 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 ofet 0dgf.e+(y q 10 min. What fraction of the sample is left afteet.0(f d yqeg+r 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 iob/csbr v4 ckz +(k,kal( de3m+dine-137 is 8.0 days. How many iodine nuclei are neceka ck +4b(z ,lb s(3ce+v/kmrdssary 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 om6y*wzhue;hw7r 5.rk v6 fl n4f 3.0 days has an initial activity of .yl4; k65 mw*ufvre7 rz hn6wh$0.24 \; Ci$. 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 woodegz1:, nxu+ )vq+;/ao xtqylzr n 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:xzn/1;y +xaqqt ,+glz ru)vo 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 tak o /ze/pu3n12lbx9wrue $4.0 \times 10^{20} \; atoms$ 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 takz0to xdccr46x)gb2 d w 5un*s;e 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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