I believe you are referring zero as the exponent. <span>Any number (except 0) with exponent 0 is defined to mean 1.
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For one thing, there is a rule:
<span> a^m/ a^m = a^m-m = a^0
</span>But (when a is not equal to <span>0),
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a^m/ a^m = 1
Therefore, we must define a^0 as 1.
Since nonmetals have five, six, or seven electrons in their valence shells, it takes less energy to gain the necessary electrons, and therefore form anions.
A. It can be as important to a story as a character
Explanation:
These elements are rare because:
<u>Helium fuses into the carbon by the combination of three helium nuclei (Z = 2) and one carbon nucleus (Z = 6), therefore bypassing elements with Z= 3, 4 and 5 which are lithium, beryllium, and boron respectively. Therefore, the fusion processes in cores of the stars do not form these three elements. </u>
<span>Li has fewer electrons than Li+ (protons can't change)
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