00:06
For equation a, we're given that rubidium 90 is undergoing beta emission.
00:22
So let me go rubidium 90.
00:27
And then i've got to pull my periodic table up here.
00:30
Rubidium is, wait over on this side, element 37.
00:37
And it's undergoing beta decay.
00:42
So here will be my beta decay, which means i will have a 90 and a 38.
00:49
And that gives me strontium b what am i given for b? selenium 702 selenium 72 and selenium got to go on the other side is 34 what is it undergoing it is undergoing oh that's an undergoing electron capture so my electron capture will be depicted as follows and i'll still have the 72 as my mass number and a 33 and that will give me 33 is arsenic let's go blue for c c i've got krypton 76 and krypton 76 there's its esotopic notation and it's undergoing positron emission and here is the positron emission particle and i will need a 76 here and a 35 here and that will give me, i think it's bromine, yes.
02:35
And finally, i'm guessing this will be alpha decay.
02:38
It is...
