Atoms

What is an atom?

• A metal

• A negatively charged particle that orbits the nucleus

• A small particle that makes up most types of matter, made of protons, neutrons and electrons

• A row of the periodic table

What is the nucleus?

• The center of an atom

• A negatively charged particle that orbits the nucleus

• A small particle that makes up most types of matter

• The row of the periodic table

What is the atomic mass?

• The mass of an element

• The weight of an element

What is the atomic weight?

• The mass of an element

• The weight of an element

What is the atomic or element symbol?

• The number of neutrons in an element

• The abbreviation for the name of an element

• The number of protons in an element

• The atomic mass

What can you tell from a Bohr model?

• number of electrons

• number of protons

• number of energy levels (or shells)

• number of neutrons

What are negatively charged particles?

• protons

• electrons

• neutrons

What are positively charged particles?

• protons

• electrons

• neutrons

What are neutral particles?

• protons

• electrons

• neutrons

An element is

• the center of an atom

• a pure substance

• a chart that shows all the well known elements

• the weight of an element