Which choice represents an element?

• CO

• H₂O

• Al₂O₃

• Fe

What represents a compound?

• Al₂O₃

• Fe

• Co

• Na

Tags

NGSS.MS-PS1-1

The periodic table contains ________ elements

• 92

• 108

• 100

• 118

On a periodic table, the elements on the right are mostly___________

• metals

• Nonmetals

• metalloids

On a periodic table, the elements on the left are mostly___________

• metals

• Nonmetals

• metalloids

On a periodic table, the elements that form a staircase separating elements are ____________

• metals

• Nonmetals

• metalloids

The majority of the human body is made of which type of elements

• metals

• metalloids

• synthetics

• nonmetals

What is the most abundant METALLOID element in the universe?

• Potassium

• Silicon

• Titanium

• Hydrogen

Match Definition: the mass of a substance in a given volume. Formula: Mass Divided by Volume

• Density

• Conductor

• Insulator

• Mixture

Match Definition: Elements that have physical and chemical properties of both metals and nonmetals. Also called semi-metal

• Metals

• Metalloids

• Nonmetals

• Molecule