Terms to Learn #4 ATOMS

Front

What is the chart that organizes all known elements by their physical and chemical properties called?

Back

Periodic Table of Elements

Front

What is the center of the atom that contains protons and neutrons and has a positive charge called?

Back

nucleus

Front

What is the negatively charged particle that orbits the nucleus of an atom called?

Back

electron

Front

What are characteristics of matter that can be observed with your senses called?

Back

Physical Property

Front

What is the number in each box of the periodic table that represents (tells) the number of protons in the nucleus of each atom called?

Back

Atomic Number

Front

What is the smallest unit of an element that retains the properties of that element?

Back

atom

Front

What is a substance made of only one type of atom called?

Back

element

Front

What is the term for atoms of the same element that have different numbers of neutrons?

Back

isotopes

Front

What is the positively charged particle found in the nucleus of an atom called?

Back

proton

Front

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

Back

atomic number