Atomic Radius of Main-Group Elements Generally

question 125

Multiple Choice

Atomic radius of main-group elements generally

• A)increases from left to right across a period and increases down a group.
• B)increases from left to right across a period and decreases down a group.
• C)decreases from left to right across a period and increases down a group.
• D)decreases from left to right across a period and decreases down a group.

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Definitions:

Falsifiability

The principle that a scientific theory must be capable of being proven wrong as a criterion for being considered scientific.

Independent Variables

In an experiment, the variable that is manipulated or controlled by the researcher to observe its effect on the dependent variable.

Dependent Variables

These are variables in an experiment that are expected to change as a result of an experiment's manipulation of the independent variable.

Blind Observers

Individuals who assess experimental data or conduct an evaluation without knowing the specific details or hypothesis being tested to prevent bias.