The oxidation number<span> of a Group 2 element in a </span>compound<span> is +2. The </span>oxidation number<span> of a Group 17 element in a binary </span>compound<span> is -1. The sum of the </span>oxidation numbers<span> of all of the atoms in a neutral </span>compound<span> is 0. The sum of the </span>oxidation numbers<span> in a polyatomic ion is equal to the charge of the ion.</span>
Answer:
co is colbalt
Explanation:
Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27.
Answer:
35.45253819
Explanation:
(0.7578*34.96....)+(0.2422*36.96...)
Decreases as you move left to right
