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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 least mad2etbzia(f :b y1+zq*/vrl(hss?

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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 ist:pf;g.0d al k

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi,cz wk9,/dys jsts 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 the number oc.n74(a ae*g5sjzd sxf

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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)i x z5i(sl-uo 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 atomic ma8ptn*+6 xkn cdss by A, and its neutron nk+t cx6p*n8d number by N, which 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 boz2g km/h,*guf+ws7hr1 + inunstable nucleus, the atomic mass number of the nuc/fgrwubm o72s * gkhz+h+i1,n leus

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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 atojzj9p d d)hnf *5,dl*ym 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 stabh;i( 1vv5 07qptn bxxlle nucleus because 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 differq8j j).w0tcd *mbz. ament numbers of neutrons are referrd 0t.jmz wq*cma. 8jb)ed 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 elemen7 bigk u+a.5euvn7q4ot have 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 unit is definedk hrby+- r. u.f1ics;r 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 neutrons, the tot i,k57(vaxsukf; f 3) km kt8j7ju7lvcal mass of a stable nucuv,; 5kkcfsl7a8 v(k7iktjxu)fj37mleus 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 zen ceyol63q;69c8thbojzoql40v f2 s4m:g - 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 nuclef q;jawdvgjw q5 /+i/x8jn*y +us 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 nucleonk7)sym wqj nx)6 wk-c( 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 nuc+ e 7n80s; alr.qr04rxrzq *afcim1 lmj dpt2+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 statemenz)6w 0s7hdb3lh5n)kv d tsj6mts 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 electrostat7 1o x z(8l8u/whboxiv,oo bf3ic force, the nuclear force between adjacent protons in a bh 1ov(b iwo88x, /3oo7 zxuflnucleus 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 penetraxbrs;d+ d zaz(0 xeino */hz6,te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratsijj h8wq8 z*5 wm74pse

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrr1h egh(s :0tvgik16,g -lee kate

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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 as,kd8ymqkdps (3ap-l p3wh31z opj18 n

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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 9 cp0;f j yhcqag2o+ kcljye7g9/vy4;known 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 toj)do u+lk ;,qu 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 annchnp-7r7/ ;ivef+nugp8;mr ns 8 o4f atomic 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 emitted from an unstable nucleus, the atomicaveq59dhqun):72rkq e un0o: c p*. ww mass number o*vq5 :ehkqeq 27na9)w0dur n u:wc .opf 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 unstab+/ nl) r;.wirzlrbqi+ le nucleus, the atomic number of the nucbniq)+zw.i;rllrr/ +leus

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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 - M c2qe v hop2),5 v+1 8l+yrvyzhmhv:jsa) 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 2 * kgrnve:ek; fsf, -jzq+:fumost 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 fv/jz 9 pp m feedzscbz *1/d2152xqyx6rom 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 ma;8qqx( 2izf wnss?

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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 irb av na)a,ms 0)4. na egtgeb,/hr.r3s conserved in addition to electric charge, energy, and momen0a )vr4mb.sg.nrg t3,,n) eahar a/betum?

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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 subst0ktsxr7 myyqg 14b7y6h 1 5freance 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 emits a single belo57r4vgh0b v s.jaq ,ta particle when it decays. When this happens, the resulting nucleu4 g,l0s5qov j7varh. bs 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 magnevd)pcn9(p*i;t( b4/dw*jg2ua 3mskvd*z dh h tic 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 liquidr ,3siy6z a*dc 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 bub5kc xuw37a suyxu d5fa3 2t67fble 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 1bo7-lr dn jm);y b0ff14 and atomic number 6 has how many protons;rl n bj1b -ffm)7oyd0?

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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 n/ -n6 t9gmnewoumber 6 has how many neutronn9gm6/ o-n wtes?

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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 n7 rzmyouusnm42o*, ;aumber for calcium 39 are 20 and 39, respectively. How many nucleons are in one a7n4uu msa r,z2yoo*m; tom?

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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 and 39, respectksq*+- kgmot2 h0p:c:u ncfz 7ively. How many electrons are in one ato- quh t:0kfcm*zc: pg+ksn7o2m?

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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 calckl3tf8ea 1nw3ium 39 are 20 and 39, respectively. Ho3ke w8 fn1t3alw many 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 numucff i00, z.uj48dt ett*y 5frber for calcium 39 are 20 and 39, respectively. How many neutrons aru .*r f4y,ect0ft85zt0u jf ide 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 eleca uyef3th6ai m; 0i7r-trons 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 carbon-14 nucleusbcn03* kxdi2w?

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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 of ,0.dgi hoe+0p y, ozmomass 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 enbwp3cid62 3rdergy 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 /-dusu/l7 tc1qmd/vi 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 number i )u.n fi44 9boya*o6ilzh0 fzys nbn yi9z.6uo0*zlh4if y) a o4fow

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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.dxzm9dj9 9 uwroq: 1n3 If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the darm19dxuwj9 :q n3 9zdoughter 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 beta decay. Hohmwi c-oxquk:/1;/ j dw much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 hasqw /k1/:ohxm;- c djui 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 6 undeko bx:7:bt r;*) knnke /1bqzl *e3ercrgoes $b-$ 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, h65dz(hl2 bzi6: jxl ppow much will be left after 100 years?djl h5p pz6zb62(xl i:

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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-hc(u-tfi2 pbfimf6/ d 4;ou i)life is 247 4 -uou/cpf btff;diih 6( i2)myears?

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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 certifie b mx7yw:f9ss/c4k.msw9ym7 kd 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 ,czi bl9ikp/3half-life of 10 min. What fraction of the sample is left after 40 ,lb9 zik3ip/ cmin?

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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 iodik6pbyam/15jc,p wrd:-xc e p0fi) r6 ene-137 is 8.0 days. How many iodine nuclei are necessary to produce an pe:f,5- 61bwpd 0 m)rcc6jipa/xery kactivity 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 ini 0 l7rg jw0)p3wm0+cwfku. v5vsq x9vmtial activity of l0.vm700 3rgp95w )v u +vxfkwqmcswj$0.24 \; Ci$. 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 caskef;x9q-.ok) nem.dbi w5 p/jbit 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 k5ipmbd fwonj i9;be-.x/ ).q carbon-14, a beta emitter, is 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 take y+sp1f0 dx1 ty$4.0 \times 10^{20} \; atoms$ 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 taku5 1akbg t,l7me 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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