Periodic Table

Front

What does 12.011 represent?

Back

Atomic mass of Carbon.

Front

The Modern Periodic Table of Elements is arranged by what?

Back

Atomic number.

Front

What is the number of protons in a Nitrogen atom?

Back

7 protons.

Front

Which particle is negatively charged?

Back

Electron.

Front

The periodic table is mostly comprised of what type of element?

Back

Metals.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a chemical symbol?

Back

A one or two-letter notation used to represent an element.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.

Front

What is the significance of the periodic law?

Back

It states that the properties of elements are a periodic function of their atomic numbers.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.