Classification

question 5

Multiple Choice

Classification. The various energy levels in an atom of magnesium (²⁴Mg) have different numbers of electrons. Use the numbers below to answer the following questions.
-The number of electrons in the second energy level

• A)1
• B)2
• C)3
• D)6
• E)8

---

Definitions:

Smoking Cigarettes

The act of inhaling and exhaling the smoke produced by burning tobacco in rolled paper.

Critical Thinking

A way of evaluating the claims and comments of other people that involves skepticism and examination of evidence.

Reinforcement

In behavioral psychology, a consequence applied that will strengthen an organism's future behavior whenever that behavior is preceded by a specific antecedent stimulus.

Introspection

The examination of one's own thoughts, feelings, and sensations as a means of personal reflection or psychological analysis.