An Atom That Loses an Electron Is

question 5

Multiple Choice

An atom that loses an electron is:

• A) known as a cation.
• B) known as an anion.
• C) still called an atom.
• D) known as an isotope.

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Definitions:

Epidemiological Studies

Research investigations conducted to understand the patterns, causes, and effects of health and disease conditions in defined populations.

Prevalence

The percentage of individuals in a population who are identified as having a certain condition during a particular time frame.

Incidence

The rate at which new cases of a disease or condition appear over a certain period of time, typically per year.

Placebo Control Group

In a therapy outcome study, group of people whose treatment is an inactive substance (to compare with the effects of a drug) or a nontheory-based therapy providing social support (to compare with the effects of psychotherapy).