Which of these atoms has the largest number of neutrons in the nucleus? Check all that apply.
157Dy
162Ho
149Nd
148Eu
159Gd

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

2b2t

explanation:

2b2t

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a