Atoms and the Periodic Table

Some common substances and their chemical formulas are listed in the chart on the right. Which of these substances are elements?

• hydrochloric acid and carbonic acid

• oxygen and helium

• carbon dioxide and water

• water and oxygen

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NGSS.MS-PS1-1

The tiny particles that make up all matter are called

• genes

• atoms

• minerals

• cells

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NGSS.MS-PS1-1

NGSS.MS-PS1-5

Plastic is used to cover the copper wires in the power cords of appliances because plastic differs from copper in

• density

• hardness

• phase at room temperature

• electrical conductivity

Which model is used by scientists to determine the properties of elements?

• a Punnett square

• the Periodic Table

• a pedigree chart

• the rock cycle

The chemical symbols of four different elements are listed below.

Cd

Cu

Br

P

Which of these elements indicate a metal.

• Cd

• P

• Br

• Cu

Tags

NGSS.MS-PS1-1

The chemical symbols of four different elements are listed below.

Cd

Cu

Br

P

Which of these elements indicate a nonmetal.

• Cd

• Cu

• Br

• P

In which group of the Periodic Table of the Elements are the noble gases located?

• 1

• 7

• 10

• 18

Identify one element that has chemical properties similar to the chemical properties of fluorine

• O

• He

• Cl

• S

Because copper is a metal, it is

• liquid at room temperature

• nonreactive with other substances

• a poor conductor of electricity

• a good conductor of heat

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NGSS.MS-PS3-3

Information for the element lead (Pb) is shown.

In which labeled space on the portion of the table should the element lead (Pb) be placed?

• a

• b

• c

• d

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NGSS.MS-PS1-1