Which of the Following Elements Is Not a Solid at Room

question 99

Multiple Choice

Which of the following elements is not a solid at room temperature?

• A)Ag
• B)Al
• C)He
• D)Fe

---

Definitions:

Conditioned Response

A learned response to a previously neutral stimulus that has become conditioned by being paired with an unconditioned stimulus.

UCS

Unconditioned Stimulus; a stimulus that triggers a naturally occurring response without the need for prior learning.

Flavor Aversion Conditioning

A learning process in which an organism learns to avoid a particular taste because it has been associated with a negative reaction, such as nausea or discomfort.

Temporal Conditioning

A technique in which the presentation of the unconditioned stimulus (UCS) at regular intervals causes the internal state present at the time of the UCS to become able to elicit the conditioned response (CR).