What Is the Electron Configuration for the Co²⁺ ion

question 69

Multiple Choice

What is the electron configuration for the Co²⁺ ion?

• A) [Ar]4s²3d⁹
• B) [Ar]4s⁰3d⁷
• C) [Ar]4s¹3d⁶
• D) [Ne]3s²3p¹⁰
• E) [Ar]4s⁰3d⁵

---

Definitions:

Labor Rate Variance

The difference between the actual cost of labor and the expected (or standard) cost.

Actual Hourly Rate

The real wage rate paid for an hour of labor, often compared against budgeted or standard rates for cost analysis.

Standard Hourly Rate

A predetermined amount paid or charged per hour, often used to calculate labor costs in manufacturing or services.

Labor Efficiency Variance

The difference between the actual hours taken to complete a task and the standard hours allowed for the actual output, multiplied by the standard hourly labor rate.