Which of the Following Electron Configurations Is Correct

question 103

Multiple Choice

Which of the following electron configurations is correct?

• A) Ca: [Ar]4s¹3d¹⁰
• B) Mo: [Kr]5s²4d⁵
• C) Br: [Kr]3d¹⁰4s²4p⁷
• D) Bi: [Xe]6s²4f¹⁴5d¹⁰6p³
• E) Ga: [Kr]3d¹⁰4s²4p¹

---

Definitions:

Rails

In electrical or electronic contexts, rails often refer to conductive paths that supply power to various components within a system.

Rungs

Horizontal lines in ladder diagrams that represent electrical circuits.

Symbols

Representations or signs used to indicate objects, functions, or processes in diagrams or models, especially in technical fields.

Control Coil

An electromechanical device used in relays, contactors, and other control components, generating a magnetic field to actuate the operation of these devices.