Answer:
A
Explanation:
The group number of an element is equal to the number of electrons the outermost shell (or highest energy level) contains
O is what should go in the blank. O stands for Oxygen.
Only one of the listed choices are correct here:
<span><em>The x-axis would change title and values.</em>
</span>
<h3>
Answer: Choice A) 0-7</h3>
Explanation:
If the pH is between 0 and 7, then we have an acid.
If the pH is between 7 and 14, then we have an alkaline base.
If pH = 7, then it's neutral.
