Chemistry, 26.07.2019 11:20 lilyjordan5972

Which represents a balanced nuclear equation? a. 23/11 na > 24/12 mg +1/1 h b. 24/11 > 24/12 mg +1/-1 e c. 24/13 al > 24/12 mg+0/-1 e d. 23/12 > 24/12 mg +1/0 n

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Answer from: lyn36

Option b: $^{24}_{11}Na\rightarrow ^{24}_{12}Mg+^{0}_{-1}e$

A nuclear equation is said to be balanced if the sum of the mass number A and sum of the atomic number Z is equal on both sides of the reaction arrow.

In nuclear reaction, atoms are represented as follows:

$^{A}_{Z}X$

Here, A stands for mass number, Z stands for atomic number and X represents the atomic symbol.

a. The nuclear reaction is as follows:

$^{23}_{11}Na\rightarrow ^{24}_{12}Mg+^{1}_{1}H$

Here, sum of mass number and atomic number on left side of the reaction arrow is 23 and 11 respectively.

On right hand side sum of mass number is 24+1=25 and that of atomic number is 12+1=13. Since, both mass number and atomic number are not same, it is not a balanced nuclear reaction.

b. The nuclear reaction is as follows:

$^{24}_{11}Na\rightarrow ^{24}_{12}Mg+^{0}_{-1}e$

Here, sum of mass number and atomic number on left side of the reaction arrow is 24 and 11 respectively.

On right hand side sum of mass number is 24+0=24 and that of atomic number is 12-1=11. Since, both mass number and atomic number are same, it is a balanced nuclear reaction.

c. The nuclear reaction is as follows:

$^{24}_{13}Al\rightarrow ^{24}_{12}Mg+^{0}_{-1}e$

Here, sum of mass number and atomic number on left side of the reaction arrow is 24 and 13 respectively.

On right hand side sum of mass number is 24+0=24 and that of atomic number is 12-1=11. Since, atomic number is not same, it is not a balanced nuclear reaction.

d. The nuclear reaction is as follows:

$^{23}_{12}Mg\rightarrow ^{24}_{12}Mg+^{1}_{0}n$

Here, sum of mass number and atomic number on left side of the reaction arrow is 23 and 12 respectively.

On right hand side sum of mass number is 24+1=25 and that of atomic number is 12+0=12. Since, atomic number is not same, it is not a balanced nuclear reaction.

Answer from: mecennabosaaen

Option b, the sum of or the difference of the atomic number and mass must be equal on both sides of the equation.

Answer from: Quest

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

Answer from: Quest

50.23 i believe is correct but don't quote me on that.

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Which represents a balanced nuclear equation? a. 23/11 na > 24/12 mg +1/1 h b. 24/11 > 24/1...