Elements and Compounds

The chemical symbol of an element always matches the element's name.

• Agree

• Disagree

Two or more different elements chemically combine to form compounds.

• Agree

• Disagree

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Every compound has a chemical formula.

• Agree

• Disagree

Tags

NGSS.MS-PS1-1

Essential for life

• Elements

• Compounds

• Both

Tags

NGSS.MS-PS1-1

Represented by an unique chemical symbol

• Elements

• Compounds

• Both

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

• a gas at room temperature.
• made of two different elements.
• given off by green plants.

Tags

NGSS.MS-PS1-1

Which of the following is the most abundant element Earth’s crust?

• Calcium
• Iron
• Oxygen
• Potassium

A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?

• Mn
• Magnesium
• Mg
• 12

Compounds are different than elements because compounds are -

• A combination of two or more elements.
• 
  B)not able to be broken down into parts
• made from the same type of atoms
  
• a pure substance, elements are not
  

Tags

NGSS.MS-PS1-1

Use the periodic table to determine the Chemical symbol for Iron.

•  Ir
• FE
• Fe
• I