Which of these grouping of elements could have the characteristic of luster (shiny)?

• Metal
• Nonmetal
• metalloids
• Both metals and metalloids

Tags

NGSS.HS-PS1-1

Which category of elements gains or shares electrons?

• Metal

• Nonmetal

• Metalloid

Which element is a metalloid?

• Titanium
• Selenium
• Potassium
• Polonium

All of the following would classify an element as a nonmetal except?

• Dull

• Luster

• Brittle

• Poor conductor

A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a ....

• metal

• nonmetal

• metalloid

• cannot be determined

Which of the following is a property of a non-metal?

• Conducts electricity and heats well
• Can be hammered into thin sheets
• Is brittle and breaks easily
• Has a shiny, metallic luster

A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal? 

• Hydrogen
• Arsenic
• Krypton
• Copper

Tags

NGSS.MS-PS1-2

Which of the following correctly lists the three main groups of elements in the periodic table going from left to right?

• Nonmetals -metalloids-metals

• metals-nonmetals-metalloids

• metalloids-metals-nonmetals

• metals-metalloids-nonmetals

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Tags

NGSS.HS-PS1-1

How do metals differ from nonmetals?

• metals are shiny, nonmetals are dull
• metals are good insulators, nonmetals are good conductors
• metals are powdery
• nonmetals are shiny