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A
Explanation:
use Google lol that's what i d$
Answer:
if u look up the question u can probably find it in quizlet or u can also search up question in quizz
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The kidneys regulate the pH of the blood by excreting acids in urine. They also produce and regulate bicarbonate, which increases blood pH. These changes take longer than those that occur due to breathing, potentially taking hours or days.
The element selenium has the atomic number of 34 while aluminium has atomic number of 13. The electronic configuration of selenium is 2, 8,18, 6 while that of aluminium is 2, 8, 3. This means that, selenium has six electrons in its outermost shell, this allows selenium to have variety of valence numbers. Aluminium on the other hand has only three electrons in its outermost shell. Aluminium will be more ready than selenium to give away its valence electrons in order to attain the octet form. Selenium belongs to the group VIA while aluminium belongs to group IIIA. The group that an element belongs to determine the number of electron in its outermost shell.<span />
