All right. We have to complete the following nuclear reactions. There are four of them. Um, so essentially, we're just gonna balance or mass in our charge, and then we'll figure out what element we have to write as the new nucleus. Sound good. All right. So Boron 12 is going to carbon six. Sorry. Kharfen 12. Stupid me. Um, so are mass is the same here, Um, are mass is increasing by one. So we have to balance that by having a negative mass. Um, a negative charge. Sorry, s O. R. Mass is not increasing or decreasing our charges going up. I want So we have 12 and five on the top and bottom, respectively. So what particles? That that's going to be a beta particle. So you could write e r. You could also write B minus whatever you want to dio, um, act in IAM to 25 is going to France iam to 21. So, um, you're gonna notice some of these, um, some of these mass changes, right? That's a mass change of four. And a charge change of two. So what is that to you? That's gonna be a helium nucleus, which is Alfa. Um, that's what being out for the K. I can't write force that I am sorry. Rebounds are mass And charge. Yes, moving on. Nickel 63 is going to something and admitted the beta particle. Right, So same is a are massive staying the same are charges gonna go up by one. So now we have, um, 28 on the bottom on both sides. What is element 29? That's gonna be copper. Copper 29. Copper 63. I mean, sorry. Um, so that's the answer to see. And then, um that's beta decay. I know. We're not supposed We don't need to get in the case, but it's good practice. So then business to 12 is omitting an Alfa particle here, so that means that our mass is gonna decrease by four. Are charges gonna decrease by two? So I'm going to give us to await and 81. Um, what is Element 81? That is Sally. Um, t l all right. Mass and charge of balanced. Yes. OK. Looks like we're done here.