Examlex
Approximately how many radioactive atoms are present in a tritium sample with an activity of 0.2 × 10−6 Ci and a half-life of 12.3 years? (1 Ci = 3.7 × 1010 decays/s)
Females
Refers to the sex of an organism or human being that produces non-motile ova (egg cells) and can typically bear offspring or produce milk for its young.
False Beliefs
Convictions or understandings that are not aligned with the actual state of affairs or reality.
Object Permanence
The understanding that objects continue to exist even when they cannot be observed or heard, a concept developed in early childhood.
Conservation
In developmental psychology, it describes a child's ability to understand that properties of objects (like volume or mass) remain the same even when their form or appearance changes.
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