Select the Correct Statement About Isotopes

question 16

Multiple Choice

Select the correct statement about isotopes.

• A) All the isotopes of an element are radioactive.
• B) Isotopes of the same element have the same atomic number but differ in their mass number.
• C) Isotopes occur only in the heavier elements.
• D) All the isotopes of an element have the same number of neutrons but differing numbers of electrons.

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Definitions:

Systematic Desensitization

A behavioral therapy technique used to reduce phobic responses through gradual exposure to the feared object or situation.

Exposure Techniques

Therapeutic methods used to treat fears and phobias by gradually exposing patients to the feared object or context without any danger.

Cognitive Therapies

A category of psychotherapeutic treatments that help patients understand the thoughts and feelings that influence behaviors.

Behavior Therapies

A range of therapies that focus on changing maladaptive behaviors through conditioning and other learning principles.