The Atom with 69 Neutrons and 50 Protons Has a Mass

question 89

Multiple Choice

The atom with 69 neutrons and 50 protons has a mass number of

• A) 69
• B) 50
• C) 19
• D) 119
• E) cannot be determined from information given

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Definitions:

Inattentional Blindness

The psychological phenomenon where an individual fails to perceive an unexpected stimulus in plain sight, purely as a result of lack of attention rather than any vision defects or deficits.

Sequential Processing

The cognitive process of understanding and managing information in a specific, ordered sequence, critical for tasks such as problem-solving and learning.

Blindsight

A phenomenon in which people who are perceptually blind in a certain area of their visual field demonstrate some response to visual stimuli in that area without consciously perceiving them.

Selective Attention

The process by which one focuses on one input or task while ignoring other stimuli or information.