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Two nuclei may have equal Z, but different A, because they contain
Middle-class Status
A social and economic classification that includes individuals and families with moderate income levels, often associated with stable employment, education, and the ability to afford comfortable living.
Republican Party
One of the two major political parties in the United States, traditionally advocating for conservative policies and a market-oriented economy.
Gays
Individuals who are emotionally, romantically, or sexually attracted to members of the same sex.
Lesbians
Women who feel romantic, emotional, or sexual attraction towards other women.
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