Potassium Has an Atomic Mass of 39 and Possesses 19

question 68

Multiple Choice

Potassium has an atomic mass of 39 and possesses 19 protons. The number of neutrons belonging to sodium is ____.

• A) 12
• B) 16
• C) 11
• D) 20
• E) None of the above.

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Definitions:

Equilibrium Quantity

The quantity of goods or services supplied and demanded at the equilibrium price, where the quantity supplied equals the quantity demanded.

Progressive Income Tax

A tax system in which the tax rate increases as the taxable income increases, aiming to distribute the tax burden more equitably.

Proportional Tax

A tax system where the rate of tax is constant regardless of the amount subject to tax, meaning everyone pays the same percentage of their income.

Local Tax

Taxes imposed by local government entities, such as cities or counties, typically used to fund local services like schools, roads, and public safety.