Metals, Nonmetals, & Metalloids

What are the physical properties we use to classify metals, nonmetals, and metalloids?

• reactivity, smell, and density

• physical state, hardness, and mass

• luster, conductivity, and malleability

What is luster?

• the way a surface reflects light

• the way a substance can be shaped by hammering

• the way a substance conducts electricity

Tags

NGSS.MS-PS4-2

A group of elements are shiny, malleable, and good conductors of heat and electricity. What is the classification of these elements?

• metals

• nonmetals

• metalloids

Scientists examine an element's ______________ to determine if it is a metal, nonmetal, or metalloids.

• age

• physical properties

• location

A certain element, when pounded with a hammer, doesn't break apart but forms thing sheets. It also conducts electricity very well. The element is most likely a

• metal

• nonmetal

• metalloid

What would be the best way to determine if an element is malleable or not?

• shine light on it

• try to hammer it flat

• see if it conducts heat

Which of these elements is most likely a good conductor of heat and electricity?

• Hydrogen, a nonmetal gas

• Carbon, a nonmetal solid

• Cobalt, a metal solid

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-3

Which element would be an insulator?

• Gold, a metal

• Zinc, a metal

• Sulfur, a nonmetal

Tags

NGSS.MS-PS2-3

Which quality are metals and metalloids most likely to have in common?

• conduct electricity very well

• brittle and shatter easily

• have a metallic shine or luster

Out of the three main groups of elements, which has the greatest conductivity?

• metals

• nonmetals

• metalloids