Atoms with Z > ________ Are Radioactive and Decay in One

question 106

Multiple Choice

Atoms with Z > ________ are radioactive and decay in one or more steps involving mostly alpha and beta decay.

• A) 60
• B) 110
• C) 83
• D) 160
• E) 30

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Definitions:

Synaptic Cleft

The synaptic cleft is the small gap at the junction between neurons, through which neurotransmitters carry signals from one neuron to another.

Axon Terminal

The end part of an axon that makes synaptic connections with another nerve cell or with an effector cell.

Dendrites

Branch-like extensions of neurons that receive signals from other neurons and conduct them toward the cell body.

Synapse

The point of contact between two neurons through which electrical or chemical signals are relayed from one neuron to the other.