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How many electrons are there in the 3rd principal energy level (n = 3) of a phosphorus atom?
National Democratic Convention
A major political event where the Democratic Party in the United States selects its presidential and vice-presidential candidates.
Affiliation
The relationship or association between individuals or organizations.
Rosa Parks
An African American civil rights activist best known for her pivotal role in the Montgomery Bus Boycott.
Civil Rights Movement
A decades-long struggle by African Americans to end racial discrimination and achieve equal rights under the law in the United States.
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