1. Explain why the main energy levels of the atoms are also called shells. What object can you compare the main energy level with? Explain your choice.
2. Suppose an element is discovered with an electron configuration of 8s28p1. Make an intelligent prediction of its properties and explain the basis for your answer.
2. Suppose an element is discovered with an electron configuration of 8s28p1. Make an intelligent prediction of its properties and explain the basis for your answer.
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1.Energy level is a more correct term. The term shell is just used to make them easier to understand.
They're called energy levels, because that’s what they are. Electrons around an atom (in their “shells”) move between these energy levels.
When the electrons gain energy, they move up energy levels. When the electrons lose energy, they move down energy levels.
Energy levels are discrete. Specific amounts of energy are required for an electron to move between energy levels. If the energy received is not exactly the right anount, i.e. if it's too high or low, the atom will not absorb the energy and the electrons do not change energy level.
When an electron drops down to a lower energy level (closer to the ground state, which is the lowest energy level), they emit a photon.
To sum it up, they're called energy levels because they are levels of energy which electrons move between when they gain or lose
energy.
2.Sorry Di KO po alam
I hope the first answer I gave you helps you in your Work.
Answer: 1. Each orbit or shell is associated with a definite amount of energy. Hence these are also called energy levels. ... (d) Electrons move around
2.When predicting the electron configuration of an element, we begin by using the auf bau principle.