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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 particlesdiuw9e)boug-) nmttl33b1; bvph sf 64ib y84 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 isi6bgg sbcd taj.65z+zf/; cf3

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c,bsu(eidq*zqv 3r8t , onsists 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 numbeyup ,+fye43aqe s06sk r is 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.sf4r8wd di*bv1p:-km9g h-cf, fdt x is determined 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 give2wig7ci d: f1an by Z, its atomic mass by A, and its neutron number by N, which ofdwgi:i 7a2c1 f 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 atomic mass number o 7gubhl9br2vyb7v- 6 hf the n7bl6 9hu2 bg7 hbvv-yrucleus

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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 imit7 h42xlw:in an atom 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 because oq,z jo3mn48)r5tty k-f5 tqurf

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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 diffe-t5pkxbg:8c jkky 4:arent numbers of neutrons are referred y4:b5k 8pxcj:g-t kka 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 j.5s fq,. ukhhnuclei 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 defivhu xad 19xn(ef+6ou ekau3 9os swkms02y4- 1ned 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 t*p72(wn,.- gm;js.2m sesspiwu usjuotal mass of a stable nucleus is alwmpu upgj(s*;2j2sn- mus,.wi7w .es says

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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 t1jz st2 1mv7za 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 contributed tm 3 keo6+um7vwzo*7hoo

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy permjy uyjx/dv nem8/.- fkj z;*6 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 pen2.ike9 o h .2u)wntdur 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 statements concerning the nuclear ftb60fm8klt(w2fag x 6oc.x5 k orce 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 nuclo be*:)slqa s5-3 pgsjear force between adjacent protons in a nucleusjs)q ges*p- o5:sl3ba 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 penetrh3zmdxl38 cqm 52d1m/bthgf)ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratu:j 2vb*4a1f+xtb)gr0 l x+hwxt6jm oe

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraqnw- +t 63nx-d,rpxnz cjkp)2te

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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 als7fw7 ds2 ioc,+unb-3 1 gr:lzyyo pm/qo known 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 kwjdju,1. v3qk5a ywx6 nown 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 b)ss ca +y, z;ld3.t6lldx8hxge attracted 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 ay4:fw58 u i tq2qu*f+lqgb 0vcs)sa q0n 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 qn/u-)e/jc oqatomic mass number of the nuce-un qqo//) jcleus

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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, 7sucs/qi gz(dna ( 0u6the atomic number ofd(qsi cgsu670( nazu/ the 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 - dfbkp8hv xsm0 +ej48 t-9c;ouMa) 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 nearifh4+ 0l6xkxl ly 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 f h2xtws3t)rt/.p*; pziu v mm+rom 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 tzoxhq493ga*uw;3pqwt : epc;43zzoss?

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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 ikxlag01vlte ; /-2 yp38d4 u7 nrrphbbs conserved in addition to electric charge, enehpr4bvt 2-pxge7;ul1 /arkn0d8yl 3b rgy, 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 hal/q m4*my9ynhnf-life 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, carg3sb ilj -1 xn9na2h1abon-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, 1 gbixl-na2 j1sh9a3nthe 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 pakh 15.u9 d rinssxq3*r.9ksw krticles 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 thatcqj0lq 6z6l 4,1ybn xt uses 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 becabj /iik*k,g6, fh:i- 9lzrv8ffje*mbuse

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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 a0*e3sljqu p9ub25 oh uig 4vj7nd atomic number 6 has how many protons?vh5ogiu7pjb4 3 2 0e9uusl*qj

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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 neutrou.(v:z gha j+v82pq uonshap+uz :.2o jvv8 qug(?

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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 ma +9j3 ozcpbu0rss number for calcium 39 are 20 and 39, respectively. How many nucleons are in one atorp9o0z j3 cbu+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 y0xlz6jmm6 sp f(*.wa number for calcium 39 are 20 and 39, respectively. How many em mp*(wjya.fl0 zxs66lectrons 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 clvd mp8u2ngyz a5.m * )d/dz7galcium 39 are 20 and 39, respectively. How many protons are ddz)2dm8l.m/ 7va u gy*zgnp5 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 see0 1g+hz)tei uo) e7number for calcium 39 are 20 and 39, respectively. How many neutrons are in one atom?s e h7 eue)0zg)o+ei1t

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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, theqcx oh()31b dz number 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 carbon-14 tpx1 ywpky258 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 numhqwss 368il h.ber 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 bindini+qnbb ,hnzy(d- ;ub.nc- 93l;skb p zg energy 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 rsytb3-o yq( 1ad;* pjpemove 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.z0m/txf4v6 w vt*3gn zsu7+jf Its atomic number is now0mg *3nvtwff zs4zu 7+tvj6 /x

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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 2qi5)zq . kc6hv49 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in thqkzq6vic 5h).e 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 beta dec92i5mrgf6;6umm (q9t .ynd mm ws-wahay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and ngi(am t. h2;r6 mm6s5 q w-ymdw9um9fnitrogen-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 6 unde t;9dj(m sx;kwt:kyn. rgoes $b-$ 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 tcgxgh,zj-jo)+en w -t0,/f.t ca 7,lqcsdx8 be left after 100 yearjcc-)gt.nwl+x/xfa h-ds78coq, ,g0zj ,te ts?

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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 itm39;+ arhcc/g2wua8eqy g3k nc jf*a.s half-life is 247 year 3gu a 8f2ka h+*g3 .mcan/ryqc9ew;jcs?

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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 7iqj)ce bz r ov.o,4uw5t-dfc9y:(w acertified 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 1a apm6v yvo8fe4229wv0 min. What fraction of the sample is left2 fp4v8 va2e 6mwvayo9 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 iodiu4 x,1ki9hza: i-qn.a jsh )mr pmqb-,ne-137 is 8.0 days. How many iodine nuclei are n-ikr)qz:1nsx4-mh9a u .p iaqb mh,,jecessary 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 of 3.0 days has an initial6xsau /x)5ydcs 4x-b d activity of acx/ydbs 4d- x6 )ux5s$0.24 \; Ci$. 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 ;no i0/rxj 8+ajc4q7m 64ibl kib uv:mcarbon-14 measured 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 iq 0k4bic: ;jru+/n4io6a7 j 8xlmbv mthe 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 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 take1 52 9r4eb- qiqoq26mqbghhff $4.0 \times 10^{20} \; atoms$ 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 ol.1pxjnk+bjhc;2 ov g0q)o0 $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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