Answer :
Final answer:
The correct nuclear equation for the positron emission of bromine-84 is Br-84 -> Kr-84 + e⁺. In this equation, a proton in bromine-84 is converted into a neutron and a positron is ejected from the nucleus, creating krypton-84.
Explanation:
In a positron emission, a proton in the nucleus is converted into a neutron, and a positron is ejected out. The positron is a particle which has the same mass as an electron, but with a positive charge. The correct nuclear equation for the positron emission of bromine-84 will result in a decrease of one in the atomic number while the mass number remains the same. Therefore, the correct option would be a) Br-84 -> Kr-84 + e⁺. This equation is balanced as the total atomic numbers and mass numbers are equal on both sides of the equation
In this equation, the bromine-84 (Br-84) undergoes positron emission to become krypton-84 (Kr-84). The e⁺ in the equation represents a positron. The atomic number decreases from 35 (atomic number of bromine) to 36 (atomic number of krypton) keeping the neutron to proton ratio stable.
Learn more about Positron emission here:
https://brainly.com/question/30802337
#SPJ11
