Question

A?

Answer 1

well if you remember from the other problems, gamma rays were on the EM spectrum

so can you think of a more fitting description than A?

Answer 2

D

Answer 3

i think

Answer 4

yeah (got interrupted by something whoops)

Answer 5

Not sure about this

Answer 6

the top "row" and the bottom row have to balance

so 85 = 0 + ___
35 = -1 + ___

fill in the two blanks, those become the mass number and atomic number of the missing element, then you'd use the bottom number to find what the element is

Answer 7

85
36

Answer 8

good, so what element would correspond to 36?

Answer 9

C

Answer 10

atomic # 36 is Krypton not Bromine

Answer 11

35

Answer 12

is the atomic numnerfo Bromine

Answer 13

after beta decay the identity of the element changes

the element that goes into the (?) place has an atomic # of 36 as determined by our previous calculations to balance the equation

so 36 gives us Krypton

Answer 14

so either a and b

Answer 15

becuase it needsto equal

Answer 16

so according to our previous calculations, we determined that the number on top must be 85 and the number on the bottom is 36

looking at the ptable gives us atomic number 36 as krypton

85 Kr
36

answer choice D

Answer 17

Right, ugh im sorry so overwhelmed i cant even think straight

Answer 18

C

Answer 19

good

Answer 20

C

Answer 21

yeah that's right (had a brainfart for a moment)

Answer 22

D

Answer 23

perfect

Answer 24

D

Answer 25

well done

Answer 26

A

Answer 27

perfect

Answer 28

D

Answer 29

good (I'm going to close this, would you mind re-opening a new question?)

Answer 30

No problem