Metalloids !

Arrange the following by increasing valence electrons

(you may use periodic table)

B, Si, Ge, As, Sb, Te, Po

• B, Si, Ge, As, Sb, Te, Po

• B, Si, Ge, As, Sb, Po, Te

• Sb, Si, Ge, Po, B, Te, As

• Te, Po, Sb, As, Ge, Si, B

Which table below correctly lists the properties of metals and nonmetals? *

• A

• B

• C

• D

How would this element be classified?

• Metal
• Nonmetal
• Metalloid
• Metamorphic

Which of the following is true?

• Gold= Go

• Lead= Pb

• Scandium= Sm

• Oxygen= O

Which element is a metalloid?

• Titanium
• Selenium
• Potassium
• Polonium

Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table . Based on these observations, which sample is most likely a nonmetal?

• Sample 1
• Sample 2
• Sample 3
• Sample 4

When an object changes shape when struck by a hammer.

• luster
• malleable
• brittleness
• ductile

Which of the following is not true.

• Potassium= K

• Silver= Ag

• Sodium= S

• Bromine= Br

Which elements are found along the zig-zag line?

• metals

• nonmetals

• metalloids

• superconductors

How many metalloids are found in the row that starts with the element Rb?

• 14

• 2

• 4