The Basics: Elements and the Periodic Table

How many electrons does the oxygen atom have?

What is the atomic mass of oxygen?

What type of charge does a proton have?

The Periodic Table is arranged in increasing atomic #. What also increases in each element?

What is the nucleus of an atom made of?

What is the atomic number of oxygen?

What is an example of an element?

What are the parts of an atom called?

What is matter?

Elements combine to make different molecules.

What type of charge do electrons have?

What is at the center of an atom?

All atoms in the universe are made up of the same basic parts: protons, neutrons and electrons.

Why doesn't positively charged particles repel each other in the nucleus of an atom?

Different combination of protons, neutrons and electrons combine to make different elements,

The number of protons plus the number of neutrons equal the atomic mass.

What is everything made of?

The _________ ____________ is equal to the number of protons in an atom.

What are molecules?

What charge does a neutron have?

Most of the time atoms have the same number of protons and electrons.