This is when Electrons are shared
what is a covalent bond
This is a neutral pH
What is a pH of 7
These 4 elements are the most common in living organisms
What is Oxygen (O) , Hydrogen ( H), Nitrogen (N) , and Carbon (C).
This is the atomic number
What is the number of protons
This is used in PET scans and as other tracers
What is a radioactive isotopes
This is when Electrons are accepted or donated
What is an Ionic Bond
This is a solution with more H+ ions
What is an Acid
This is a common trace element found in the body
What is zinc, fluoride, or iodine
This is the atomic mass
What is the sum of protons and neutrons
This type of isotope decays
What is a radioactive isotope
This is the Weakest Chemical Bond
What is a Hydrogen Bond
This is a solution with more OH- ions
What is a Base
This is commonly added to water to prevent tooth decay
What is fluoride
This how you find the number of electrons
What is the same as the number of protons
The tendency of water molecules is due to this
What is cohesion
In this type of Bond shared electrons have a neutral electronegativity.
What is non-polar covalent bond
Why acid in the stomach went from a pH to having fewer H+ ions
What was a buffer was added
This is commonly added to table salt to prevent the formation of a goiter
What is iodine
In the equations 2H + O= H20, 2H represents what in the reaction
What is the reactant
Waters surface tension and heat capacity is due to this
What is Hydrogen Bonds
In this type of Bond the electrons have a negative or positive electronegativity.
What is a polar covalent bond
Why Antacids is a buffer for stomach acid
What is because it has a pH higher than 7
This is the percentage of the most common elements
What is 96%
In the equations, 2H+0= H2O, the H2O represents what of the reaction.
What is the product
These move around the nucleus of an atom much like bugs to a bright lamp
What are electrons