What Is the Symbol for the Ion with 19 Protons

question 77

Multiple Choice

What is the symbol for the ion with 19 protons and 18 electrons?

• A)F+
• B)F-
• C)Ar+
• D)K-
• E)K+

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Definitions:

Control Group

In experimental research, a group of subjects that does not receive the treatment or intervention being tested, used as a benchmark to measure how the other tested subjects do.

Placebo Pills

Inactive substances or "sugar pills" used in clinical trials to test the effectiveness of treatments and control for the placebo effect.

Level of Agitation

The degree or extent of restlessness, uneasiness, or turmoil, often observed in individuals with psychiatric conditions.

Random Assignment

A selection procedure that ensures that participants are randomly placed either in the control group or in the experimental group.