Unit 5 Review Elements and Their Properties

(Select all that apply) Elements that are metals tend to be

• good conductors of heat and electricity.

• dull.

• brittle.

• malleable

• shiny

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NGSS.MS-PS3-3

Which group has 1 electron in their outer energy levels?

• alkali metals

• alkaline earth metals

• noble gases

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NGSS.HS-PS1-1

(Select all that apply) To which of the following groups do the elements Fe, Co, and Ni belong?

• alkali metals

• alkaline earth metals

• transition metals

• halogens

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which one of these elements is always found in nature combined with other elements?

• copper

• silver

• magnesium

Group 18 of the periodic table contains the _________.

• alkali metals

• halogens

• noble gases

(Select all the apply) Which of the following properties are most typical of nonmetals?

• mostly solids at room temperature

• mostly gases at room temperature

• brittle as solids

• poor conductors

• malleable as solids

Why are the noble gases are unreactive?

• they only exist as isotopes

• they are metals which do not form compounds

• they have a full set of valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which group has both metallic and nonmetallic properties?

• Nonmetals

• Metals

• Metalloids

What are different molecular structures of the same element called?

• Semiconductors

• Allotropes

• Isotopes

Which element is present in all organic compounds?

• nitrogen

• carbon

• oxygen