U3L2 - Post Flashcard - Quantum Theory and the Atom

Front

What does the de Broglie equation predict about moving particles?

Back

All moving particles have wave characteristics.

Front

What type of orbital is represented by a dumbbell shape?

Back

p orbital.

Front

What is the term for the three-dimensional region around the nucleus that describes the electron's probable location?

Back

Atomic orbital.

Front

What is the lowest allowable energy state of an atom called?

Back

Ground state.

Front

What phenomenon does Niels Bohr's quantum model explain regarding elements?

Back

Atomic emission spectra are discontinuous.

Front

What is the principle that states that electrons occupy the lowest energy orbitals first?

Back

Aufbau principle.

Front

What is the maximum number of electrons that can occupy an s orbital?

Back

2 electrons.

Front

What is the shape of an s orbital?

Back

Spherical.

Front

What is the term for the energy required to remove an electron from an atom?

Back

Ionization energy.

Front

What is the quantum number that describes the size and energy of an orbital?

Back

Principal quantum number (n).