8.5C The Periodic Table of Elements

Front

What are the ROWS in a periodic table that classify the elements by the number of electron shells?

Back

Periods

Front

What are elements that have properties of BOTH metals and nonmetals, sometimes referred to as semiconductors?

Back

Metalloids

Front

What is the mass of an atom, approximately equal to the number of protons and neutrons in the atom?

Back

Atomic mass

Front

What are the columns on a periodic table that arrange the elements by the number of electrons that are in the outermost shell; also called families?

Back

Groups

Front

What is the area surrounding the nucleus of an atom where the electrons are found?

Back

Electron cloud

Front

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

Back

Atom

Front

What is the term for the number of protons in the nucleus of an atom, which determines the element's identity?

Back

Atomic number

Front

What are the elements found in group 18 of the periodic table, known for their lack of reactivity?

Back

Noble gases

Front

What is the term for elements that are typically shiny, good conductors of heat and electricity, and malleable?

Back

Metals

Front

What is the term for elements that are typically dull, poor conductors of heat and electricity, and brittle?

Back

Nonmetals