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Quantum Mechanical Model of the Atom: Electrons and Energy Levels

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Quantum Mechanical Model of the Atom: Electrons and Energy Levels

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Questions and Answers

What is responsible for the array of colors emitted by fireworks?

Metal salts in the fireworks

Combustion of explosive materials

Heat emitted by fireworks

Arrangement of electrons within the atoms (correct)

What do metal salts emit when they are heated?

Explosive sound waves

Combustible gases

Characteristic colors of light (correct)

Electric sparks

What can be inferred about electrons based on the observed colors of light in fireworks?

They can stay only in indefinite energy levels

They emit light when heated

Their arrangement is responsible for the colors of light (correct)

They move randomly within the atom

What can be determined about the energy levels, sublevels, and atomic orbitals in an atom?

Their role in determining the maximum number of electrons in an atom Signup and view all the answers

How are the colors of light emitted by metals related to the structure of the atom?

They are determined by the arrangement of electrons within the atoms Signup and view all the answers

Q1. What can you conclude about the elements and the color of flame produced?

The color of the flame is directly related to the specific element present in the metal salt Signup and view all the answers

Q2. If sodium nitrate is changed to another salt of sodium, ex. Sodium chloride (table salt), do you think the color of the flame would be the same or different. Why?

The color of the flame would be different because the wavelength of light emitted by sodium chloride is distinct from that of sodium nitrate Signup and view all the answers

Q3. How did Neils Bohr explain the spectral lines of an element shown in the spectroscope?

Bohr explained that spectral lines represent different energy transformations within an atom due to electron movement Signup and view all the answers

Q4. What refinement did Schrödinger make to Bohr’s atomic model?

Schrödinger described electron behavior using wave functions and probability distributions Signup and view all the answers

Q5. How do the spectral lines in atomic emission spectra relate to electron energy levels?

The spectral lines correspond to electron energy transitions between different orbits or energy levels Signup and view all the answers