Welcome to the Electronic Configuration MDCAT MCQs with Answers. In this post, we have shared Electronic Configuration Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Chemistry offers a chance to enhance your knowledge regarding Electronic Configuration MCQs in this MDCAT Online Test.
The electronic configuration of hydrogen is:
A) 1s²
B) 1s¹
C) 2s²
D) 2s¹
Which element has the electronic configuration 1s² 2s² 2p⁶?
A) Oxygen
B) Neon
C) Nitrogen
D) Carbon
The electronic configuration of sodium is:
A) 1s² 2s² 2p⁶ 3s¹
B) 1s² 2s² 2p⁶ 3p¹
C) 1s² 2s² 2p⁵ 3s¹
D) 1s² 2s² 2p⁴ 3s²
Which subshell fills after 3p in the Aufbau principle?
A) 4s
B) 3d
C) 4p
D) 5s
What is the electronic configuration of chlorine?
A) 1s² 2s² 2p⁶ 3s² 3p⁵
B) 1s² 2s² 2p⁶ 3s² 3p⁶
C) 1s² 2s² 2p⁵ 3s² 3p⁵
D) 1s² 2s² 2p⁶ 3s¹ 3p⁵
The number of electrons that can occupy the s-subshell is:
A) 2
B) 4
C) 6
D) 10
What is the electronic configuration of calcium?
A) 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
B) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d²
C) 1s² 2s² 2p⁶ 3s² 3p⁴ 4s²
D) 1s² 2s² 2p⁶ 3s² 3p⁶ 4p²
The electronic configuration 1s² 2s² 2p⁴ represents:
A) Carbon
B) Oxygen
C) Nitrogen
D) Fluorine
Which element has the configuration 1s² 2s² 2p⁶ 3s² 3p¹?
A) Sodium
B) Magnesium
C) Aluminum
D) Silicon
The electronic configuration of an element determines its:
A) Mass number
B) Atomic number
C) Chemical properties
D) Physical state
The valence shell of fluorine is:
A) 2s² 2p⁶
B) 2s² 2p⁵
C) 3s² 3p⁵
D) 1s² 2p⁵
Which quantum number specifies the energy level?
A) Principal quantum number
B) Azimuthal quantum number
C) Magnetic quantum number
D) Spin quantum number
The configuration 1s² 2s² 2p³ belongs to:
A) Carbon
B) Nitrogen
C) Oxygen
D) Fluorine
Which subshell has the highest energy?
A) 4s
B) 3d
C) 4p
D) 3p
The maximum number of electrons in the p-subshell is:
A) 2
B) 6
C) 10
D) 14
Which element has the configuration [Ne] 3s² 3p³?
A) Phosphorus
B) Sulfur
C) Chlorine
D) Argon
The electronic configuration of argon is:
A) 1s² 2s² 2p⁶ 3s² 3p⁶
B) 1s² 2s² 2p⁶ 3s² 3p⁵
C) 1s² 2s² 2p⁶ 3s² 3d¹
D) 1s² 2s² 2p⁶ 3p⁶
Which rule states that every orbital in a subshell is singly occupied before any is doubly occupied?
A) Aufbau principle
B) Hund’s rule
C) Pauli exclusion principle
D) Heisenberg principle
The electronic configuration of potassium is:
A) 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
B) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹
C) 1s² 2s² 2p⁶ 3s² 3p⁵ 4s¹
D) 1s² 2s² 2p⁶ 3p⁶ 4s²
The Aufbau principle explains:
A) Electron pairing
B) Order of electron filling
C) Electron spin
D) Orbital shapes
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