How Is a Pooled Estimate Represented

question 64

Multiple Choice

How is a pooled estimate represented?

• A) pc
• B) z
• C) p
• D) np

---

Definitions:

Valence Shells

The outermost electron shell of an atom that determines its bonding behavior with other atoms.

Cation

A particle with one or more units of positive charge, such as a hydrogen ion (H+) or calcium ion (Ca2+). Compare with anion.

Anion

A particle with one or more units of negative charge, such as a chloride ion (Cl-) or hydroxide ion (OH-). Compare with cation.

Isotopes

Atoms of the same element that differ in the number of neutrons within their nuclei.