Atoms Unit Review #1 Atomic Theory

Front

In Dalton's Atomic Theory, all elements consist of __________ that cannot be divided.

Back

Atoms

Front

Which model is this? (Cloud Model, Rutherford Model, Thomson Model, Bohr Model)

Back

Cloud Model

Front

In Dalton's Atomic Theory, atoms of a particular element have the same ___________.

Back

Mass

Front

This model added on to previous models by showing electrons existed at certain 'energy levels'. However, it does not accurately show what those levels look like. (The 'Solar System Model' of the atom, The 'Rutherford Model' of the atom, The 'Plumb Pudding Model' of the atom, The 'Standard Model' of the atom)

Back

The 'Solar System Model' of the atom

Front

The Plum Pudding Model belongs to which scientist? (Rutherford, Dalton, Thomson, Dalton)

Back

Thomson

Front

What is the main idea of Dalton's Atomic Theory?

Back

All matter is made of atoms, which are indivisible and indestructible.

Front

What did the Rutherford Model demonstrate about the atom?

Back

It showed that atoms have a small, dense nucleus surrounded by electrons.

Front

What is the significance of the Bohr Model in atomic theory?

Back

It introduced the idea of quantized energy levels for electrons.

Front

What does the term 'atomic number' refer to?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.