Nuclear Reactions Practice

1. Which choice balances the nuclear reaction correctly?

$\schemestart \chemfig{^{12}_{6}C} + ? \arrow[,.7] \chemfig{^{28}_{13}Al} \schemestop$

$\chemfig{^{4}_{2}He}$

$\chemfig{^{16}_{7}N}$

$\chemfig{^{40}_{19}K}$

$\chemfig{^{16}_{8}O}$

Question 1 of 10

2. Which choice balances the nuclear reaction correctly?

$\schemestart \chemfig{^{7}_{3}Li} + \chemfig{^{4}_{2}He} \arrow[,.7] ? \schemestop$

$\chemfig{^{3}_{1}H}$

$\chemfig{^{4}_{2}He}$

$\chemfig{^{11}_{5}B}$

$\chemfig{^{11}_{5}Na}$

Question 2 of 10

3. Which choice balances the nuclear reaction correctly?

$\schemestart ? \arrow[,.7] \chemfig{^4_2He} + \chemfig{^{205}_{81}Tl} \schemestop$

$\chemfig{^{209}_{83}Bi}$

$\chemfig{^{207}_{85}At}$

$\chemfig{^{207}_{82}Pb}$

$\chemfig{^{201}_{79}Au}$

Question 3 of 10

4. What’s the mass number of this isotope?

$^{25}_{13}Al$

Question 4 of 10

5. Which choice balances the nuclear reaction correctly?

$\schemestart \chemfig{^{210}_{82}Pb} \arrow[,.7] ? + \chemfig{^{0}_{-1}e} \schemestop$

$\chemfig{^{211}_{82}Pb}$

$\chemfig{^{209}_{83}Bi}$

$\chemfig{^{210}_{83}Bi}$

$\chemfig{^{210}_{81}Tl}$

Question 5 of 10

6. Which choice balances the nuclear reaction correctly?

$\schemestart \chemfig{^{253}_{99}Es} \arrow[,.7] \chemfig{^{214}_{87}Fr} + ? \schemestop$

$\chemfig{^{39}_{12}Mg}$

$\chemfig{^{4}_{2}He}$

$\chemfig{^{39}_{19}K}$

$\chemfig{^{26}_{13}Al}$

Question 6 of 10

7. What’s the symbol for an isotope with 20 protons and 30 neutrons?

$^{50}_{20}Sn$

$^{20}_{10}Ne$

$^{30}_{20}Ca$

$^{50}_{20}Ca$

$^{50}_{30}Zn$

$^{30}_{20}Zn$

Question 7 of 10

8. What type of nuclear reaction is this?

$\schemestart \chemfig{^{220}_{88}Rn} \arrow[,.7] \chemfig{^{216}_{86}Po} + \chemfig{^4_2He} \schemestop$

alpha decay

fission

fusion

gamma decay

beta decay

Question 8 of 10

9. Which choice balances the nuclear reaction correctly?

$\schemestart ? \arrow[,.7] \chemfig{^{98}_{34}Se} + \chemfig{^{138}_{62}Sm} \schemestop$

$\chemfig{^{40}_{28}Ni}$

$\chemfig{^{40}_{20}Ca}$

$\chemfig{^{236}_{96}Cm}$

$\chemfig{^{248}_{94}Pu}$

Question 9 of 10

10. How many neutrons does mercury-200 have in its nucleus?

120

280

200

Question 10 of 10