An Element That Has the Outer Electron Configuration 5s²4d⁵ Belongs

question 19

Multiple Choice

An element that has the outer electron configuration 5s²4d⁵ belongs to which period and group?

• A) period 4; group 8
• B) period 5; group 9
• C) period 5; group 7
• D) period 5; group 3
• E) period 5; group 13

---

Definitions:

External Validity

The extent to which the results of a study can be generalized or applied to contexts outside of the experimental conditions.

Matched Control Group

In experimental research, a group of subjects closely matched to the experimental group in key variables but not receiving the intervention.

High Levels

Refers to a considerable degree or intensity of a particular characteristic, quality, or activity.

Stress

The body's response to any demand or challenge, which can be triggered by both positive and negative experiences.