Examlex
An electron in a hydrogen atom has principal quantum number n = 4.How many possible values of the orbital quantum number l could it have?
Sierra Club
An environmental organization based in the United States, established to conserve natural areas and advocate for environmental policies.
Environmental Organization
An entity that focuses on promoting awareness and solutions for protecting the natural environment.
Worldwatch Institute
An environmentally focused research organization that provides analysis and information on global environmental and sustainable development issues.
Canadian Wildlife Act
Legislation designed to protect and conserve wildlife in Canada, focusing on the preservation of habitats and species at risk.
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