Unit 1A Test Review - Elements & the Periodic Table

Which element is the most abundant in the universe?

• oxygen

• nitrogen

• iron

• hydrogen

What is the purpose of classifying elements on the Periodic Table? (check all that apply)

• to organize the elements

• so we can see patterns in properties of elements

• to make it easier to understand the elements

• it allows us to make predictions about element properties

• so we can compare and contrast the elements

If you have a substance made up of a single type of material, it's called a(n) ____.

• pure substance

• impure substance

How is the Periodic Table organized?

• by abundance

• by alphabet

• by similar properties

• by color

Which best describes the property of conductivity?

• able to be shaped in wire

• reflects light well

• allows heat & electricity to flow

• how tightly or loosely packed the atoms are

• able to be hammered into shapes or thin sheets

Tags

NGSS.MS-PS3-3

Which best describes the property of luster?

• able to be shaped in wire

• reflects light well

• allows heat & electricity to flow

• how tightly or loosely packed the atoms are

• able to be hammered into shapes or thin sheets

Which best describes the property of ductility?

• able to be shaped in wire

• reflects light well

• allows heat & electricity to flow

• how tightly or loosely packed the atoms are

• able to be hammered into shapes or thin sheets

Which best describes the property of malleability?

• able to be shaped in wire

• reflects light well

• allows heat & electricity to flow

• how tightly or loosely packed the atoms are

• able to be hammered into shapes or thin sheets

Here are the properties of an unknown substance sitting on your teacher's desk: is reflective, can be shaped, is solid, and will conduct heat. What element could it be?

• boron

• platinum

• hydrogen

• bromine

Which properties typically describe a nonmetal? (check all that apply)

• dull / non reflective

• malleable

• higher density

• lower melting point

• brittle