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2 cards from this section. Quick, good the night before a test.
What keeps electrons in orbit around the nucleus?
Think about the forces involved in keeping opposite charges together.
What is the formula for kinetic energy of an electron?
Remember that kinetic energy is related to motion.
What force keeps electrons in their orbits around the nucleus?
Consider the type of charge the nucleus has.
Is the total energy of an electron in a stable orbit positive or negative?
Think about what bound means in physical terms.
Calculate the force acting on an electron in the first orbit of a hydrogen atom using known values.
Recollect the values for Coulomb’s constant and electron charge.
Discuss how energy absorption and emission lead to the observable spectral lines in atomic emission.
Consider the connection between energy differences and light wavelength.
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