An Atom Has an Atomic Number of 19 and a Mass

question 75

Multiple Choice

An atom has an atomic number of 19 and a mass number of 39. This atom will have

• A) 19 neutrons.
• B) 20 neutrons.
• C) 39 neutrons.
• D) 58 neutrons.
• E) 20 electrons.

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Definitions:

Medical Deductions

Expenses for healthcare that exceed a certain percentage of adjusted gross income and can be itemized for tax deductions, including payments for doctors, prescriptions, and certain medical equipment.

Floor

In finance, the lowest possible value or limit for prices, wages, or other financial variables.

Personal Casualty Loss

Financial loss resulting from the damage, destruction, or loss of an individual’s property from sudden, unexpected, or unusual events.

Deduction

An amount that can be subtracted from gross income to reduce the total taxable income, leading to lower tax liability.