Part A An electron in which of the following sublevels would have the lowest ene

Question

Part A

An electron in which of the following sublevels would have the lowest energy?

3s

3p

3d

they all have the same energy

Part B

Which of the following are considered to efficiently shield an electron that is in the outermost principal energy level of an atom?

the other electrons that are in the outermost principal energy level.

the core electrons

BOTH the core electrons and the other electrons that are in the outermost principal energy level

Nothing, the electrons in the outermost principal energy level do not experience any shielding.

Part C

Atomic radius generally increases as we move __________.

down a group and from left to right across a period

up a group and from left to right across a period

down a group and from right to left across a period

up a group and from right to left across a period

3s

3p

3d

they all have the same energy

Explanation / Answer

a)

3s since it is the lowest point

B)

Both, since we care about the total charge that "feels" the electron

C)

it generally increases from left to right

from top to bottom,

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