Chemistry Atoms

Which of the following orbital notations for phosphorus is correct?

• 
• 
• 
• 

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• opposite spin states.

• the same spin state.

• different energies.

• the same energy.

A quantum of energy is the

• frequency of electromagnetic energy given off by an atom.

• wavelength of electromagnetic energy gained by an atom.

• minimum quantity of energy that can be lost or gained by an atom

• continuous spectrum of energy given off by an atom.

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Quantum numbers are sets of numbers that

• are characteristic only of the hydrogen atom.

• consist of multiples of two.

• specify properties of electrons.

• relate the energies of protons in the atomic nucleus.

Which mathematically describes the wave properties of electrons?

• quantum theory

• atomic theory

• the Bohr model of the atom

• the Rutherford model of the atom

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A photon is emitted from a gaseous atom when an electron moves to its ground state from a(n)

• inner shell.

• excited state.

• n = 0 state.

• less energetic state.

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• the wavelength.

• the frequency.

• the speed of light.

• Planck’s constant.

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NGSS.HS-PS4-3

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When electromagnetic radiation strikes the surface of a metal, electrons are ejected from the metal’s surface. This is a description of the

• photoelectric effect.

• quantum theory.

• Aufbau principle.

• effects of diffraction.

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