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When a lithium atom in its ground state is made from a helium atom by adding a proton (and neutron) to the nucleus and an electron outside, the electron goes into an n = 2, state rather than an n = 3,
This is an indication that electrons:
Absolute Advantage
The ability of a country, individual, company, or region to produce a good or service at a lower cost per unit than the cost at which any other entity produces that good or service.
Specialize
To focus on a particular area of study, work, or production, becoming an expert or highly skilled in that area.
Import
The act of bringing goods or services into a country from abroad for sale.
Colombia
A country located in the northern part of South America, known for its significant biodiversity, cultural heritage, and as a major producer of coffee and emeralds.
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