Atomic Theory (Obj 4-3a)

Front

In water, there are 8.0g of oxygen for each 1.0g of hydrogen, whereas in hydrogen peroxide there are 16.0g of oxygen for each 1.0g of hydrogen. This is an example of the Law of ______.

Back

Multiple Proportions

Front

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

Back

Atoms

Front

Which Law states that, regardless of the amount, a compound is always composed of the same elements in the same proportion?

Back

Law of Definite Proportions

Front

The smallest piece of water would be called a(n) ____.

Back

Molecule

Front

Elements A & B are chemically bonded to form Substance C. Substance C must be ______.

Back

A compound

Front

What is the definition of an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What does the Law of Conservation of Mass state?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is the significance of the periodic table in atomic theory?

Back

It organizes elements based on their atomic number and properties, showing relationships between them.