Complete the following reaction: 8 16 O { }_{8}^{16} \mathrm{O} 8 16 O + 2 4 H e { }_{2}^{4} \mathrm{He} 2 4 He ? ____ + 1 1 H { }_{1}^{1} \mathrm{H} 1 1 H .A) 9 19 O { }_{9}^{19} \mathrm{O} 9 19 O B) 10 20 N e { }_{10}^{20} \mathrm{Ne} 10 20 Ne C) 9 19 F { }_{9}^{19} \mathrm{~F} 9 19 F D) 9 20 N e { }_{9}^{20} \mathrm{Ne} 9 20 Ne

Question

Complete the following reaction:   8 16 O { }_{8}^{16} \mathrm{O} 8 16 ​ O   +   2 4 H e { }_{2}^{4} \mathrm{He} 2 4 ​ He   ? ____ +   1 1 H { }_{1}^{1} \mathrm{H} 1 1 ​ H   .A)    9 19 O { }_{9}^{19} \mathrm{O} 9 19 ​ O B)    10 20 N e { }_{10}^{20} \mathrm{Ne} 10 20 ​ Ne C)    9 19   F { }_{9}^{19} \mathrm{~F} 9 19 ​   F D)    9 20 N e { }_{9}^{20} \mathrm{Ne} 9 20 ​ Ne

Angel Matute · Accepted Answer

Final Answer : C, Explanation :   The sum of the atomic numbers (protons) on the left side is 8 (Oxygen) + 2 (Helium) = 10. The sum of the atomic masses on the left side is 16 (Oxygen) + 4 (Helium) = 20. After emitting a proton (  1 1 H { }_{1}^{1} \mathrm{H} 1 1 ​ H  ), the atomic number decreases by 1 (to 9) and the atomic mass decreases by 1 (to 19), which matches with   9 19 F { }_{9}^{19} \mathrm{F} 9 19 ​ F   (Fluorine).

Complete the following reaction: $}_{8}^{16} \mathrm{O}$ + $}_{2}^{4} \mathrm{He}$ ? ____ + $}_{1}^{1} \mathrm{H}$ .

A) $}_{9}^{19} \mathrm{O}$
B) $}_{10}^{20} \mathrm{Ne}$
C) $}_{9}^{19} \mathrm{~F}$
D) $}_{9}^{20} \mathrm{Ne}$

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