Element,compound,mixture

Which of these is an element?

• Cl
• KN
• CO4
• NaK

How many Elements are in this compound?
CuSO4

• 3
• 1
• 4
• 5

What is the symbol for Chlorine?

• Ce
• Cl
• Ch

Symbol for Nitrogen?

• N
• Ni
• Na
• Ne

The chemical symbol for Silicon is

• S
• Sn
• Sc
• Si

The chemical symbol for Carbon is

• C
• Cb
• Ca
• Cn

Elements are represented by chemical symbol.  Symbols are written with

• all lower case letters
• all capital letters
• always only one  letter
• At least and ONLY one capital letter

How many elements are in HHe

• 3
• 4
• 2
• 5

Is salt (NaCI) a compound or a element

• Compound
• element

which one can be found on the periodic table

• Compound 
• Element