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Question
______ is the outermost shell for elements of period 2.
Options
K
L
M
N
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Solution
L is the outermost shell for elements of period 2.
Explanation:
In the periodic table, the period number indicates the number of electron shells occupied by an element.
- Period 1 elements have electrons only in the K shell (the 1st shell).
- Period 2 elements have electrons in the K and L shells, making the L shell (the 2nd shell) their outermost shell.
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