9th Atomic Models and Discoveries Flashcard

Front

What is the currently accepted atomic model?

Back

Quantum-mechanical model

Front

What are orbitals in the quantum-mechanical model?

Back

Oddly-shaped areas where electrons are likely to be found

Front

According to Democritus, atoms are:

Back

Indivisible particles

Front

What did Aristotle believe about matter?

Back

It is continuous and not made of discrete particles

Front

Which atomic model includes electrons orbiting the nucleus at specific levels?

Back

Bohr model

Front

What is the Plum Pudding Model?

Back

An early atomic model proposing that atoms are composed of a positively charged 'soup' with negatively charged electrons embedded within.

Front

What is the significance of the Bohr model?

Back

It introduced the idea of quantized energy levels for electrons in an atom.

Front

What did Rutherford's gold foil experiment demonstrate?

Back

It showed that atoms have a small, dense nucleus that is positively charged.

Front

What is the main idea of the quantum-mechanical model?

Back

It describes electrons as wave functions and incorporates the principles of quantum mechanics.

Front

What is an electron cloud?

Back

A region around the nucleus where electrons are likely to be found, representing the probability distribution of electrons.