Chem Ch. 4: Arrangement of Electrons in Atoms

Which of the following orbital notations for phosphorus is correct?

• 
• 
• 
• 

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NGSS.HS-PS1-1

The diagram represents two electrons with $$  

• 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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NGSS.HS-PS4-1

NGSS.HS-PS4-3

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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NGSS.HS-PS4-1

NGSS.HS-PS4-3

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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NGSS.HS-PS4-3

In the equation  $c=\lambda\nu$  ,  $\lambda\$  represents

• the wavelength.

• the frequency.

• the speed of light.

• Planck’s constant.

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NGSS.HS-PS4-1

What is the frequency (v) of light whose wavelength (λ) is  $6.33\times10^{-7}$?    $\left(c=3.00\times10^8\ \frac{m}{s}\right)$  
 $v=\frac{c}{\lambda}$  

•  $4.74\times10^{-4\ }Hz$ 

•  $4.74\times10^{-2\ }Hz$  

•  $4.74\times10^{14\ }Hz$  

•  $4.74\times10^{16\ }Hz$  

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NGSS.HS-PS4-1

What is the frequency (v) of a photon whose energy (E) is  $3.4\times10^{-19}\ J$ ?  $6.626\times10^{-34\ }j\cdot s$ 
 $v=\frac{E}{h}$  

•  $8.8\times10^{26}\ Hz$  

•  $5.1\times10^{14}\ Hz$  

•  $3.4\times10^{-15}\ Hz$  

•  $3.4\times10^{-52}\ Hz$  

Tags

NGSS.HS-PS4-1

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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NGSS.HS-PS4-3