Answer:
The number of energy levels increases as you move down a group as the number of electrons increases. Each subsequent energy level is further from the nucleus than the last. Therefore, the atomic radius increases as the group and energy levels increase.
Explanation:
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1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
This it true because in the triangle of the transformation from solid, liquid, and gas
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Answer:
the answer should be A. the sum of all forces acting on an object
Explanation:
