Question

When an atom releases a beta particle,
a. the mass number decreases by one.
b. the mass number increases by one.
c. the atomic number increases by one.
d. the atomic number remains the same.

Answer 1

@Somy

Answer 2

https://www.google.ae/search?q=beta+decay+equation&hl=en&source=lnms&tbm=isch&sa=X&ei=kjGSU6y6PNLA7Aaa7oCoBg&ved=0CAYQ_AUoAQ&biw=962&bih=683#facrc=_&imgdii=_&imgrc=FVunyd4-f5oSNM%253A%3BA1ACbJoU-QFjKM%3Bhttp%253A%252F%252Fweb.clark.edu%252Faaliabadi%252Fchem143final08key_files%252Fimage024.gif%3Bhttp%253A%252F%252Fweb.clark.edu%252Faaliabadi%252Fchem143final08key.htm%3B528%3B105

Answer 3

check out this picture and see whats changing
if u still don't get it then i'll explain ok? :)

Answer 4

look at numbers, don't look at elements

Answer 5

Does it decrease by one :0

Answer 6

wrong

Answer 7

>:(

Answer 8

Explain then D:

Answer 9

okay
look, in beta decay
the element is just gaining 1 more proton but mass number stays same

Answer 10

so what do u think now?

Answer 11

as i mention mass is not effected so
a. the mass number decreases by one.
b. the mass number increases by one.
are wrong

Answer 12

d. the atomic number remains the same.
element GAINS a proton so this one is also wrong :)