Elements & Compounds

Na is the element sodium's 

• Formula.
• compound.
• Symbol.

All of the following are characteristics of carbon dioxide. Which characteristic makes it a compound?

• vital to life on earth
• Gas at room temperature
• Made of two different elements

Which one of these is a compound?

• Oxygen
• Water
• Copper

Which of these elements is one of the major components of you, a living organism?

• Carbon
• Sulfur
• Chlorine

Which of these elements is one of the major components of you, a living organism?

• Carbon
• Sulfur
• Chlorine

What is the name for the smallest  particle of an element that maintains the chemical identity of the element?

• Compound
• Atom
• nitrogen

What is a characteristic of compounds?

• Compounds are only pure substances.
• Compounds are the smallest form of a particle
• Compounds are made of at least two types of matter.

Elements are represented by chemical symbols.  How many letters are in the chemical symbols of elements?

• Sometimes one, sometimes two
• one, two, or three
• Always one

Is NaCl an element or compound?

• Element
• Compound
• Neither

Tags

NGSS.MS-PS1-1

What type of substance is gold (Au)?

• Element
• Compound
• Mixture