6.5ab Atoms and Elements

Front

What is a one or two letter abbreviation for an element on the Periodic Table?

Back

Chemical symbol

Front

What are pure substances made up of only one type of atom called?

Back

Elements

Front

Which element has the atomic number 20?

Back

Calcium

Front

What does the number '50' represent for an element?

Back

Atomic number

Front

Which subatomic particle has a neutral charge?

Back

Neutron

Front

What is the center of an atom called?

Back

Nucleus

Front

What is the positively charged particle in an atom?

Back

Proton

Front

What is the negatively charged particle in an atom?

Back

Electron

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number

Front

What is the term for the average mass of an element's isotopes?

Back

Atomic weight