612C
Explanation:
The correct answer is carbon-12: this is a nuclear fusion reaction.
In nuclear reactions, the mass number and the atomic numbers are usually conserved:
⁹₄Be + ⁴₂H ₙᵃX + ₀¹n
conserving atomic number:
4 + 2 = n + 0
n = 6
conserving mass number :
9+4 = a + 1
a = 12
therefore X = ¹²₆C
Learn more:
Transmutation brainly.com/question/3433940
#learnwithBrainly
Answer:
The is B. and D.
Isomers
I hope this helps :)))
