The Mass of an ¹H Atom Is 1

question 7

Multiple Choice

The mass of an ¹H atom is 1.007825 u, and a neutron has a mass of 1.008665 u. The atomic mass of ²³Na is 22.9898 u. What is the mass defect of this nuclide in u?

• A) 0.2003 u
• B) 0.1994 u
• C) 0.1901 u
• D) 0.1892 u
• E) none of these

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Definitions:

Learned Helplessness

A condition in which an individual feels unable to change their situation after repeatedly facing uncontrollable events, leading to passive and resigned behavior.

Spontaneous Recovery

A conditioned response's revival, once thought to be extinguished, after a time without exposure to the associated stimulus.

Operant Conditioning

An instructional method in which the magnitude of an action is either encouraged or suppressed through positive or negative feedback.

Pay Schedules

The structure outlining how frequently and in what manner employees receive their salaries or wages.