Ch 16 Atoms & the Periodic Table

Front

What determines the identity of an element?

Back

The number of protons in the nucleus of an atom.

Front

Give an example of a metal.

Back

Sodium (Na) is an example of a metal.

Front

What does the atomic number represent in the periodic table?

Back

The atomic number represents the number of protons in an atom.

Front

Where are non-metals located in the Periodic Table?

Back

Non-metals are located on the far right of the Periodic Table.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the average atomic mass of an element?

Back

The average atomic mass is the weighted average of the masses of an element's isotopes.

Front

What is the chemical symbol for Carbon?

Back

The chemical symbol for Carbon is C.

Front

What is the significance of the atomic mass?

Back

The atomic mass indicates the mass of an atom, which is primarily determined by the number of protons and neutrons.

Front

What are the main categories of elements in the periodic table?

Back

The main categories are metals, non-metals, and metalloids.

Front

What is a chemical element?

Back

A chemical element is a pure substance that cannot be broken down into simpler substances by chemical means.