1) Which subatomic particle has a positive charge? a) Proton b) Electron 2) The atomic number of an element represents a) The number of protons b) The number of neutrons 3) What is the correct electron configuration of Sodium (Atomic number 11) a) 1s² 2s² 2p⁶ 3p¹ b) 1s² 2s² 2p⁶ 3s¹ 4) Which quantum number determines the shape of an orbital? a) Azimuthal quantum number (l) b) Magnetic quantum number (mₗ) 5) How many electrons can occupy the p-subshell? a) 10 b) 6

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