The Chart Below Shows Part of the Radioactive Series Beginning

question 65

Multiple Choice

The chart below shows part of the radioactive series beginning with the isotope . The isotope marked with an X is

• A) .
• B) .
• C) .
• D) .
• E) .

---

Definitions:

Control Condition

In an experiment, a comparison condition in which participants are not exposed to the same treatment as in the experimental condition.

Independent Variable

The variable in an experiment that is manipulated by the researcher to examine its impact on the dependent variable.

Experimental Condition

In research, it refers to the specific environment or set of variables that participants are exposed to, allowing scientists to study the effects of these variables on behavior or performance.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.