Quantum

What atom matches this electron configuration? 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰?

• ₃₀Zn

• ₂₉Cu

• ₂₆Fe

• ₄₀Zr

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NGSS.HS-PS1-1

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What does the quantum mechanical model describe about electrons?

• Electrons do not exist in energy levels or orbitals.

• Electrons are not affected by the nucleus of an atom.

• Electrons exist in specific energy levels or orbitals and treated as waves

• Electrons are not present in atoms.

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NGSS.HS-PS4-1

How many quantum numbers are needed to describe the energy state of an electron in an atom?

• 1

• 2

• 3

• 4

If electrons in an atom have the lowest possible energies, the atom is in the

• ground state.

• inert state.

• excited state.

• radiation-emitting state.

What is the Heisenberg uncertainty principle?

• States that particles can exist in multiple states at the same time.

• Is a mathematical equation that describes the relationship between position and momentum.

• It only applies to large objects, not subatomic particles.

• It states that it is impossible to know the exact position and velocity/momentum of a particle.

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What is the principal quantum number (n)?

• A negative integer representing the energy level or shell of atomic orbitals.

• A positive integer representing the energy level or shell of atomic orbitals.

• A decimal number representing the energy level or size of atomic orbitals.

• A letter representing the energy level or shell of atomic orbitals.

What is the quantum number?

• the number assigned to each orbit of an electron

• the total number of electrons in an atom

• the total number of orbit/energy levels

• the number of valence electrons

Predicts that all moving particles have wave characteristics and relate each particles wavelength to it's frequency, it's mass, and Planck's constant?

• de Broglie Equation

• Principle Energy Level

• Heisenberg Uncertainty Principle

• Quantum Mechanical Model

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NGSS.HS-PS4-1

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The __________________is contained within a _________________________.

• energy sublevel; principal energy level

• energy sublevel; atomic orbital

• principal energy level; energy sublevel

• quantum energy level; nucleus

Who said that we can never know both their speed and position of an electron?

• Bohr

• Heisenberg

• Planck

• Einstein