Which Element Has the Valence Electrons 4s²3d²

question 67

Multiple Choice

Which element has the valence electrons 4s²3d²?

• A) Ca
• B) Sc
• C) Ti
• D) V
• E) none of these

---

Definitions:

First-Order Model

A simple linear regression model that describes the linear relationship between two variables with a straight line.

Unit Increase

A measure reflecting the change or increment in a particular variable by a single unit.

Holding Constant

A technique in statistical analysis where specific variables are kept unchanged in order to isolate the effects of other variables.

Polynomial Model

A regression model in which the relationship between the independent variable and the dependent variable is modeled as an nth degree polynomial.