What Is the Mass Number of an Atom of Potassium

question 3

Multiple Choice

What is the mass number of an atom of potassium that has 20 neutrons?

• A)39
• B)59
• C)35
• D)19
• E)15

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Definitions:

Timing

The selection of an appropriate or opportune moment to execute an action, often critical in contexts such as market entry, product launches, or investments.

Markdowns

Reductions in the selling price of goods, often to clear old stock or boost sales.

Valuable Selling Space

Prime retail or commercial area within a store or market that is strategically used to display and sell products to maximize customer purchases.

Markdown

A reduction from the original or listed price of a product, often to clear inventory or stimulate sales.