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Nuclear Chemistry. Questions Answers. 2 A) Alpha B) Beta C) Gamma. He. Alpha. Is Lithium – 7 stable (A) or unstable (B) ?. Lithium - 7. Calculate the neutron to proton ratio. 3 protons. 4 neutrons. (7 – 3). 4 n 0. 1.3 n 0. unstable. =. 3 p +. 1 p +.
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Nuclear Chemistry Questions Answers
Lithium - 7 Calculate the neutron to proton ratio 3 protons 4 neutrons (7 – 3) 4 n0 1.3 n0 unstable = 3 p+ 1 p+ **an element with 1-26 p+ should have a 1:1 ratio
Write an equation for the alpha decay of Protactinium-231 Pa He + 231 Ac 4 227 91 2 89
Which element is naturally radioactive?A) Mo B) Zn C) Ar D) At
What is a half-life? A) half the age of a radioactive element B) the time it takes for half a sample to decayC) the time it takes for half a sample to decompose
What is a half-life? A) half the age of a radioactive element B) the time it takes for half a sample to decayC) the time it takes for half a sample to decompose
Which half-life represents the most stable isotope? A) 22 years B) 22 monthsC) 22 minutesD) 22 seconds
Which half-life represents the most stable isotope? A) 22 yearsB) 22 monthsC) 22 minutesD) 22 seconds longer half life = more stable
Carbon – 14 has… A) 6 protons and 14 neutronsB) 6 protons and 6 neutronsC) 6 protons and 8 neutrons
Carbon – 14 has… A) 6 protons and 14 neutronsB) 6 protons and 6 neutronsC) 6 protons and 8 neutrons
Which type of reactions have extremely large energy changes? A) fission and fusionB) chemical and nuclearC) fission, fusion, and chemical
Which type of reactions have extremely large energy changes?A) fission and fusionB) chemical and nuclearC) fission, fusion, and chemical
Which type of reactions occur in the sun? A) fission reactionsB) fusion reactionsC) chemical reactionsD) none of the above
Which type of reactions occur in the sun? A) fission reactionsB) fusion reactionsC) chemical reactionsD) none of the above
A strong nuclear force … A) breaks the nucleus apartB) holds the protons and electrons togetherC) makes the protons repel each otherD) holds the protons and neutrons together
A strong nuclear force … A) breaks the nucleus apartB) holds the protons and electrons togetherC) makes the protons repel each otherD) holds the protons and neutrons together
Silver - 107 Calculate the neutron to proton ratio 47 protons 60 neutrons (107-47) 60 n0 1.27 n0 stable = 47 p+ 1 p+ **an element with 27-82 p+ should have a 1-1.5:1 ratio
Does this image best describe A) alpha decayB) beta decayC) fissionD) fusion
Write a nuclear equation for the alpha decay of samarium - 149
Write a nuclear equation for the alpha decay of samarium - 149 149 145 4 Sm Nd He + 62 60 2
Write a nuclear equation for the beta decay of 152 Xe 54 152 152 0 Xe Cs e + 54 55 -1
Cs 120 55 Write a nuclear equation for the beta decay of
Cs 120 55 Write a nuclear equation for the beta decay of Cs Ba + 120 e 120 0 55 56 -1