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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 t7f.v fvktp/g); xi l:nm(o2xnh2nd/mhe 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 r.q ,j upqyr 0mnc16k3cd*s1mis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus n0rd btlstdr7 2by 77,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 determine1yuqy36wjp(xyke ;0 ce(fd 9fd 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 bzfi1kp8fm,*( j;j ltiy 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 atomia:t: .teodbl 6z /0;bu z:o9erfkbbi,c mass by A, and its neutron number by N, whiczr.uee l d :zi /o:ot:;bbtb,0a69kb fh of 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 atomw1tl /qg1ow+n ic mass number of the n/l1n woqt +1gwucleus

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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 dlgrm(i) *-xim .n8 enk bf9u(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 becausmngu0b23a50f xd*x jse 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 numk) pqg+jx*b9gbers of neutrons are referre+9q g)p *bkgxjd 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 nucle;/ 8t zota.xjdi 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 tyt.0q/(0.h7a buwm 2 dyppvx 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 separate protons and neutron:s;xc+ rcn j7rs, the total mass of a stable nucleusrj cx:src+n 7; 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 t iw/;wyfjr :l-+gcoh d/k.i0 qo form a 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 ofs; ;m(4d qgcln4no2 zw a nucleus 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 pde +2; mpmiqa;er nucleon 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 pe(n )6a+i4dya4wuhh+ uejunu; r nucleon

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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 stateme)g1xd 1yo(a 9nf( te2iw6voounts 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, the nuclear force between adjackhakb7(/z: bced mn ,+.qx1fdue : k6aent protons in a nucleus is::x buemk.k6n+aef/( cqd,k h1azd7b

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetratadmp212aaxz: a4g ew +e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrj cfrsd .d-x+,db/bk- ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetat+ op(o1a/f drate

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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 know5 ec-v(:m7a hz1bd crbn 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 know.8m )2hrqgyiwj 5lj2wn 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 attdi4j2a;zsl mv8mrs ).racted 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 massnw mr+ cjvsaw7. 8(h4k 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 emitted from ah qi7y-qt5rwq .e3e.;m-wf*t x3 c ipbn unstable nucleus, the atomic mass number of tp5 iq 3b.f xerm-qt3e.-qct wiy *;7hwhe 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, t9- kw0qdu but+xgc ;ujkw,c0wbn-g9 7h.l-eahe atomic number of the nucleu.bc7n-gd-9l,ja w9+th bkuw-u0wq ex ;u c0kgs

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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 - h rb7gn 9( uo.qp+ /m)u:wijiwMa) 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 near9duk ky+t kw1y vl/q.kht3:g3ly 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 emittcq,z6 *q.idkx rv*h g u4 lk;imz95vh0ed from 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 mas tl xetpbvvi vqk aruhry-/239n00jv;/6c1 5fs?

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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 conser* x-yb;g y0ikyved in addition to electric charge, energy, and momentum*0 b xy-ikgy;y?

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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 decays?a9ygv5c: fvr 9a9/bgw

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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 emits a single bpuy2g;s oi0 8img:hn1eta particle when it decays. When this happen:g0up s 2yngo; i1mhi8s, 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 s mhkk:+,6 1+eyodrefcurve 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 liquid hydrog rih+mx cil;)9u)u6z oen 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 becausof fvae0yc3+bm.gv q5e6y)ney a92l/e

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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 ou d33tl u dz8b)fonf9-f 14 and atomic number 6 has how many protons? d d93n3ufoz lu8)bft-

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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 ma wze o/n-wdp*:nar(q8bw.irvy :;1smss number of 14 and atomic number 6 has how many neutro(1awszwv-rn :mdoi8b*y:q /;.wpr ne 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 calciuh9*17o,o ,s.j xmzqleg g ltw/m 39 are 20 and 39, respectively. How many nucleons,m9sh/zlqwg* e1j g,o.tolx 7 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 firmzu0ug)2 ;1ee o .wdor calcium 39 are 20 and 39, respectively. How many e2mwz ;ir d1.eo0 euu)glectrons 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 ocb lzi ;42v 02wynct;39, respectively. How may;libcwzv c4 n2o;2t0ny 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 20 b)1gi8b,. tl uco/zar1( tbhb and 39, respectively. How many neutrons are in one at lt)cb(11grb oi b/u8z .hab,tom?

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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 numbe9yqn hv tk ;03c2nu30y8ukpuhr 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 -dawx1g:6 4coer s+ cocarbon-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 numbbsbcoq )(1 3e+.kabopf*t 2kyfvy,.s er 15 has 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 energy c*.98tyoyftre7 6fqd 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 requir(isc ( +eg,w).y f1msxeax: iyed to remove 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 through alpha decay. Its atoixe2zuuk:; *t brq7v 6he07 ipdv8vc1mic number isu7tv u18*i :7vcei0k;6 dzqb2h rp exv 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 and 249 nucleohu.na+ 7w0zzg d/(zdhns. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucle ddnzz g7h wza+u/.0(hus?

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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 beta decay. How much encdt649jdy jvx/:t z ,gergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrd jcgj/v, 9z:6ty4 dtxogen-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 numb4/jts27k/ioj7qns wgo enq u-4 sie 74er 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 blr,p; nw bxs4c: r (ai8th7t9te left after 100 yearrxp,;tb4n 8ra:w sihl79 (c tts?

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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 teviey+h.o r 9fj0; jerc94f c)hat an atom will decay this year if its half-life is 247 yearocre.4 fyc0e+r vjiej;f9) 9 hs?

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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 certi.br9dg86tgpq v)o 3j.+ quye efied 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 fr ioy dsg*.).z2tjtk ci(ig3a 6action of the sample is l sigoa6t3j* ).2tyzig .ic(kdeft 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 magqwfg.,*g3 an ny iodine nuclei are n3. n*gg fqa,wgecessary 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 witiaut8oq hre)*c 1nl2: h a half-life of 3.0 days has an initial activity of cq: oe2 )1ua8rt*lhi n$0.24 \; Ci$. 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 casket hbma23,vq: ge//jw tqfrom 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. vbwq mh2,/q: ja e3g/t 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 takem1 m9cajxg85r $4.0 \times 10^{20} \; atoms$ 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 taket h,cw0+l.xmcr 8fgd: 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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