Sagot :
Answer:
b. 2s²
Explanation:
The numerical coefficient in 2s² is 2. This is the value of n. Since n = 2, the possible values for l are 0 (s-orbital) and 1 (p-orbital). Hence, 2s orbital exists.
The exponent in 2s² is 2. Since the orbital is an s-orbital, it can contain a maximum of 2 electrons. Hence, 2s satisfies this condition.
Since 2s orbital exists and it contains two electrons, therefore, 2s² is properly designated.
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