Explanation:
vertically opposite angles are always equal
therefore,
(6n-4)=(5n+7)
=n=11
<u>Answer</u>: <em>Option (A)</em>
<em>The metallic bonding is optimal when the distances between the metal and the oxygen are the smallest.</em>
<u>Explanation:</u>
<em>Hardness increases</em> with respect to <em>shorter distances </em>between the metal and the oxygen compounds, the reason for the increase in hardness is due to metallic bonding<em> (electrostatic force between electrons and positive ions) </em>which is optimal between them.
As the <em>distance decreases, hardness increases</em> and for increasing distances hardness decreases. So when the molecular weight is large, it has smaller valence or less charge on the metal which makes the <em>bond weaker and less hard.</em>
Answer:
Currently, we're in the Phanerozoic eon, Cenozoic era, Quaternary period, Holocene epoch and the Meghalayan age.
Explanation:
hope this helps!
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