Answer:
The electron moved down to an energy level and has an energy of

Step-by-step explanation:


A positive energy change means that the electron absorbs energy, while a negative energy change implies a release of energy from the electron.
Therefore, when an electron absorbs energy, the electron moves up to higher energy levels, and when an electron releases energy, it moves to lower energy levels.




<u>Answer</u>:
The electron moved down to an energy level and has an energy of

Answer:
x=5/2
Step-by-step explanation:
Answer:

Step-by-step explanation:
<em><u>Given:</u></em>

<em><u>Solve for:</u></em>

<em><u>Solution:</u></em>
(1) Let's move all of components that do not contain
(our target) to the right side (notice the change of sign of
from negative to positive):

(2) Let's divide both sides of equation by 4:

(3) Now, we simplify the left side:

This is the solution.
Hope this helps!
:)
Answer:
it should be : x²= 15²+8²
x²= 225+64
x²=289
x=√289
x=17
Answer:
117
Step-by-step explanation:
The total population is 117 million