Chemistry
Chemistry
100
True or false: An element can be broken down further.
False
100
True or false: a pH of 5 is acidic?
True
200
What element is represented by At?
Astatine
200
What Element is represented by Rn?
Radon
300
Is Helium a halogen, noble gas, or an alkali earth metal?
Noble gas
300
Is argon a halogen, noble gas, or an alkali earth metal?
Noble gas
400
What is the strongest type of bond in chemistry?
Ionic bond
400
What types of bonds are these? 
Hydrogen bonds