8th Science STAAR Review Cat. 1 & 2

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties and reactivity.

Front

What does Newton's third law state?

Back

For every action, there is an equal and opposite reaction.

Front

What are the three main categories of elements in the periodic table?

Back

Metals, nonmetals, and metalloids.

Front

Where are neutrons located in an atom?

Back

Neutrons are located inside the nucleus of an atom.

Front

What charge do neutrons have?

Back

Neutrons have a neutral charge.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity, while nonmetals are dull, brittle, and poor conductors.

Front

What is a chemical behavior of elements?

Back

The way an element reacts with other substances, which is largely determined by its valence electrons.

Front

What is a group in the periodic table?

Back

A column of elements in the periodic table that share similar chemical properties due to having the same number of valence electrons.

Front

What is a period in the periodic table?

Back

A row of elements in the periodic table that have the same number of electron shells.