Nitrogen-14 and Nitrogen-15 Are Isotopes

question 144

Multiple Choice

Nitrogen-14 and nitrogen-15 are isotopes. Nitrogen-15 is used to determine protein structure. Which of the following is true?

• A) Nitrogen-15 has more protons than nitrogen-14.
• B) Nitrogen-15 has more neutrons than nitrogen-14.
• C) Nitrogen-15 has more electrons than nitrogen-14.
• D) Nitrogen-15 has an electronic configuration that is different from that of nitrogen-14.
• E) Nitrogen-15 has an equal number of protons and neutrons.

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Definitions:

Toned Muscles

Muscles that have a firm appearance, usually as a result of consistent physical exercise and adequate nutrition.

Aerobic Exercise

Physical activity that improves cardiovascular health by increasing the heart rate and oxygen consumption over a sustained period.

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A mental training practice that teaches individuals to be present in the moment and engage with their thoughts and feelings without judgment.

Relaxation

The state or process of becoming less tense or anxious, often achieved through practices like meditation, deep breathing, or yoga.