USING THE PERIODIC TABLE-PRAC-8TH

Determine: What are two properties that make a metal a good choice to use as wire in electronics? FSAS SC.8.P.8.4

• conductivity, malleability

• ductility, conductivity

• luster, malleability

• malleability, high density

The following table lists some information about certain elements in group 17. What happens to these elements as atomic number increases?

• The melting and boiling point increase.

• The melting point increases and the boiling point decreases.

• The melting and boiling points decrease.

• The melting point decreases and the boiling point increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Identify: What are most of the elements on the periodic table?

• noble gases

• nonmetals

• metalloids

• metals

Examine the section of the periodic table in the figure above. Which element does not occur naturally on Earth? FSAS SC.8.P.8.6

• neptunium

• protactinium

• thorium

• uranium

Examine this section of the periodic table. What metal will have properties most similar to those of chromium (Cr)?

• V, vanadium

• Nb, niobium

• Mo, molybdenum

• Mn, manganese

Infer: Angelo wants to develop a new series of pots and pans for use in cooking. Which property of metals should he be most concerned about? FSAS SC.8.P.8.4

• conductivity

• ductility

• luster

• malleability

Tags

NGSS.MS-PS3-3

Elements are organized on the periodic table according to increasing atomic number and similar properties. If you know the relationships among elements on the periodic table, you can predict an element’s properties. Distinguish: Use the periodic table to identify to which group the noble gases belong. FSAS SC.8.P.8.6, SC.8.N.1.1

• 13

• 14

• 17

• 18

Determine: Which element is a metalloid? FSAS SC.8.P.8.6, SC.8.N.1.1

• aluminum (Al)

• arsenic (As)

• carbon (C)

• helium (He)

Tags

NGSS.MS-PS1-1

Identify: Which element is brittle and not a good conductor of electricity and thermal energy?

• aluminum (Al)

• arsenic (As)

• sulfur (S)

• lead (Pb)

What property of metals allows them to be drawn into wires?

• Malleability

• Ductility

• Brittleness

• Opacity

Answer explanation

Metals can be drawn into wires due to their property of ductility, which allows them to be stretched into thin wires without breaking.