Which of the following represents gamma emission?
(apex)

a. 228 89 ac - 228 90 th+b
b. 212 83 bi - 212 84 po+0-1e
c. 60 28 ni - 60 28 ni+y
d. 220 86 rn - 216 84 po+4 2 he

C.

Explanation:

Gamma Emission  :

When a nucleus is excited , it become unstable .To gain stability it comes back to lower energy state by emitting high-energy electromagnetic radiation .This radiation is called gamma radiation.

Symbol :

: Gamma

There is no change in mass number and atomic number during gamma emission

In A,B,D mass number or atomic number has changed, So no Gamma emission take place.

girl imma just put my comment here because i need a couple point okurrttt

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24