Answer:
Cool air moves down while hot air rises
Selenium falls in the same column with oxygen therefore it has the same number of valence electrons with oxygen which is 6. It fills the 3d orbital but only 4s and 4p are counted. The electronic configuration is [Ar]3d^10 4s^2.
Answer:
Fault-block mountain
Explanation:
I got it right on the assignment
When a liquid releases enough energy<span>. the </span>liquid<span> freezes, changing to a solid.
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