This is the state of matter in which the molecules are moving the fastest
What is a gas
100
This is the location of a proton
What is the nucleus
100
These are the names for the rows and columns on the periodic table
What are periods and groups
100
This is why atoms form bonds.
What is to have 8 valence electrons- to become stable
100
These are two properties of covalent bonds.
What are sharing electrons, electronegativity differences of 0.4 or less, bonding between nonmetals, uses prefixes for naming, low melting and boiling pts, do not conduct electricity, etc.
200
This is the definition of a physical change.
What is a change in form, but not in composition
200
This is the charge of an electron
What is negatively charged.
200
This is the trend of atomic size as you move DOWN a group (just the trend, not the explanation).
What is increasing in size
200
This is the charge of nitrogen when it forms an ion
What is -3
200
This is how many bonding spots phosphorus has
What is 3 bonding spots
300
Name an example of chemical change and an example of physical change
What is (answers variable- Teacher decides if correct)
300
This is how many protons iron (Fe) has
What is 26
300
This is the definition of electronegativity (actual definition- not "hotness factor")
What is the ability to attract electrons from another atom
300
These are the values of the electronegativity DIFFERENCES that results in a polar covalent
What is 0.4 - 1.7
300
This is the name of N2F4
What is Dinitrogen tetrafluoride
400
These are the five indicators of physical change
What are produces light, produces gas, unexpected change in color, change in temp, and forms a precipitate
400
This is what forms when you change the number of electrons
What are ions
400
This is what happens to the atomic size when electrons are ADDED (forming an anion)
What is atomic size gets larger
400
This is the chemical formula of Ca and N
What is Ca3N2
400
This is the formula for hexacarbon nonasilicide
What is C6Si9
500
These are the six phase changes
What are sublimation, evaporation, deposition, condensation, freezing, melting
500
This is the subatomic particle that is changed to form isotopes
What are neutrons
500
This is the trend AND explanation of ionization energy as you move ACROSS a period
What is increases because the atoms decrease in size and increase in pull inward from the increase protons and electrons. This causes the atom to be able to hold onto its electrons better and thus it becomes harder to remove one.