Examlex
The atomic number corresponds to the number of ________ in a specific element, while the atomic weight corresponds to the number of ________ in a specific element.
Traffic Light
A signaling device positioned at road intersections, pedestrian crossings, and other locations to control the flow of traffic.
Green Light
A signal to proceed or an indication that a proposed action is acceptable or safe.
Fixed-interval Schedule
A schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.
40-hour Work Week
The standard full-time working hours agreement, typically spread across five days of the week.
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