Exam Review Flashcards
What electron transition represents the release of energy?
3p to 1s
How many calories are in 1 kcal?
1,000
What is the atomic number equal to?
The number of protons in the nucleus
The mass of an electron is approx. 1/1836 times the mass of ____.
1H
When calcium chloride is dissolved in water, to which end of the adjacent water molecules will a calcium ion be attracted?
The oxygen end which is the negative pole.
Which element in group 16 has no stable isotopes?
Polonium
Have the properties of high ionization energy and low electric conductivity
Nonmetals
In which group does each element have a total of four electrons n the outermost principle energy level?
14
High reactivity and the formation of stable compounds
Group 1A metals
_____ surface area fosters a greater speed of reaction
More
What will happen to a chemical reaction if we add a catalyst?
Lowers the activation energy needed
Under which conditions are gases most soluble in water?
High pressure and low temperature
A solution of a base differs from a solution of an acid in that the solution of a base…….
Has a greater OH
The acidic property to an aqueous solution is due to an excess of water
Arrhenius theory
A loss of e-
Oxidization
