Atomic Structure
Protons, Neutrons, and Electrons
What are the three subatomic particles?
Solid, Liquid, Gas
What are the three states of matter?
The time required for half of something to undergo a process
What is a half-life?
Electrons in the highest occupied energy level of an element’s atoms
What is a valence electron?
This number identifies elements that are found on the periodic table of elements
What is the atomic number?
This type of property depends on the amount of matter
What is extensive property?
A term used to describe the changes in an atom once it has become unstable and begins to lose its particles
What is radioactive decay?
Atoms tend to gain, lose, or share electrons to achieve a stable electron configuration of eight valence electrons
What is the octet rule?
Elements are different because they contain different numbers of these
What are protons?
This type of mixture is uniform throughout
What is homogeneous mixture?
Splitting a nucleus into two or more smaller nuclei
What is fission?
The force that occurs when two oppositely charged objects are brought close together, but do not have to be touching
What is electrostatic attraction?
atoms that have the same number of protons but different numbers of neutrons
What are isotopes?
This property has the ability of a substance to undergo a specific chemical change
What is a chemical property?
This type of treatment can treat cancer
What is radiation treatment?
This theory predict molecular shape based on the repulsion between electron pairs
What is the VSEPR Theory?
This scientist discovered the electron by performing experiments that involved passing electric current through gases at low pressure
Who is J. J. Thompson?
This is the simplest form of matter that has a unique set of properties
What is a an element?
The combining of two nuclei to form one nucleus of larger mass
What is fusion?
Strongest intermolecular force, involving hydrogen bonded to a highly electronegative atom (N, O, or F)
What is hydrogen bonding?