How Many Times Larger Is the Radius of the Nucleus

question 66

Multiple Choice

How many times larger is the radius of the nucleus ²⁰⁸Pb (Z=82) compared to the nucleus ⁴⁰Ca (Z=20) ?

• A)0.58
• B)1.7
• C)5.2
• D)4.1
• E)2.3

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Definitions:

Independent Variable

The variable in an experiment that is manipulated or changed to explore its effect on the dependent variable.

Neurotransmitter

Chemicals in the nervous system that transmit signals across a synapse from one neuron to another, influencing a wide range of bodily and psychological functions.

Dopamine

A neurotransmitter involved in many functions, including mood, sleep, learning, and the pleasure-reward system.

Serotonin

A neurotransmitter that is involved in many functions in the body, including mood regulation, digestion, and sleep.