Question

Complete the following radioactive decay problem.
(see attachment)

Answer 1

And the attachment is?

Answer 2

Alright so when doing this problem, both sides of mass and electrons must match. What do you think I mean by this

Answer 3

I get that part I just don't get which element to use

Answer 4

Which one do you think it is?

Answer 5

it's either option 3 or option 4

Answer 6

First, let's add both sides of the top number (mass number)
What do you get on both sides?

Answer 7

The top number is going to be 4

Answer 8

What about the bottom?
Always remember that the top number and bottom number (mass number and number of electrons) always match on both sides.

Answer 9

the bottom will be 2

Answer 10

So which one of the answer choices would contain 4 mass and 2 electrons

Answer 11

options 2 and 3

Answer 12

Correct. Do you have a periodic table with you?

Answer 13

I can pull one up

Answer 14

Oh well. Check the periodic table and see what element has 2 electrons.
That will be your answer.

Answer 15

thank you for the help