Chemistry chap. 13

What are two characteristics of nonmetals?

• Some are gases

• Life on earth is based on these elements

• They have high melting points

• Not as common as Earth metals

• They are good conductors of electricity.

An element that is essential to life on earth, such as carbon, hydrogen, nitrogen, or oxygen is an _________ _______.

A class of elements that can be non-shiny solids or gases are the ________.

Nitrogen makes up _______ of the air on Earth.

• 80%

• 20%

• 50%

• 30%

Tags

NGSS.MS-PS1-1

Which of the following tables correctly lists the physical properties of metals and nonmetals?

• A
• B
• C
• D

Nonmetals tend to 

• gain electrons
• lose electrons

Tags

NGSS.HS-PS1-2

_________are not good conductors of heat or electricity.

• Metals
• Metalloids
• Nonmetals

Tags

NGSS.MS-PS2-3

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

Which of the following are true about Oxygen?

• Human cells use oxygen as fuel for chemical reactions.

• Required for life.

• Plant cells release oxygen into the air.

• Animal cells release oxygen into the air.

• Helps keep our houses standing

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

This nonmetal is found high in the atmosphere as ozone, which protects us from harmful ultraviolet rays.

• Oxygen

• Nitrogen

• Phosphorus

• Sulfur