Explanation:
To be valued means that you are appreciated for your role in his life. It means that he respects you and how you feel. It means he doesn't belittle you, he doesn't make your accomplishments seem small and he doesn't kick you to the curb when something better comes along
There is no hydrogen gained it is a combination reaction
Radiation <span>is the transfer of energy in the form of rays or waves. </span>
Answer
20.18
Explanation:
The atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.
We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its percent of the total).
Set up a table for easy calculation
0.9048 × 19.99 u = 18.087 u
0.0027 × 20.99 u = 0.0567 u
0.0925 × 21.99 u = <u>2.0341 u
</u>
TOTAL = 20.18 u