Examlex
The diameter of an atom is 100,000 times as great as the diameter of its nucleus.If an atom could be expanded to the size of a classroom the nucleus would be about the size of a
Altruism
Altruism is the selfless concern for the well-being of others, often manifested through acts of kindness or charity without the expectation of personal gain.
Social Exchange
A theory that suggests human relationships are formed by the use of a subjective cost-benefit analysis and the comparison of alternatives.
Reciprocity Norm
A social norm suggesting that people should return the help they have received to others in kind.
Kitty Genovese
Refers to a case from the 1960s that became a symbol of urban apathy, wrongly cited for years as evidence that numerous neighbors heard her cries for help but did nothing.
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