What Is the Mass Number of an Atom That Is

question 86

Multiple Choice

What is the mass number of an atom that is made up of 27 protons, 32 neutrons, and 27 electrons?

• A) 89
• B) 59
• C) 32
• D) 27

---

Definitions:

Expected Number

A predictive value that represents the average outcome of a set of trials or experiments.

Null Hypothesis

A hypothesis in statistical inference that proposes no significant difference or effect, often tested against an alternative hypothesis that suggests there is a significant difference or effect.

Association

A statistical relationship between two variables, indicating how changes in one variable correspond with changes in another.

Female Students

Refers to learners or attendees of an educational institution who identify as female.