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The Electron Configuration (Simplified)

2. Atoms and the Periodic Table / The Electron Configuration (Simplified) / 문제 3

문제 3

Identify the element that has the following electron configuration: 1s²2s²2p⁶3s¹

A

Potassium (K)

B

Sodium (Na)

C

Magnesium (Mg)

D

Calcium (Ca)