Changes from a solid to liquid is an example of a _______ change.
Color and malleability are examples of _______ properties.
Flammability and reactivity are examples of _________ properties.
To understand the submicroscopic view of the world one must use _____.
H₂O is an example of a chemical __________.
mass divided by volume is the equation for ________.
The structure of a molecule refers to its ________.
Matter that can be seen is called __________.
Matter on an atomic scale is _________.
Sugar is an example of a ____ substance.
Concrete and pond water are examples of _____________ mixtures.
Cola is an example of a _____________ mixture.
Results written in numerical form is said to be ____________.
Alloys like brass is an example of a ____________ mixture.
The salt in salt water is the part of the solution called ___________
Melting and boiling points are both _______ properties.
The first subatomic particle discovered is the ______.
The atomic number equals the number of _______. (blue numbers on class periodic table)
The number of protons and neutrons make up the ________. (red numbers on class periodic table)
Law of Definite Proportions
Law which states all samples of a specific compound have exactly the same composition by mass.
A reaction that releases light or heat is called a(n) ______.
Two or more elements chemically bonded together is a _____.
Isotopes of the same element have differing numbers of _____.
Positive charged particles are attracted to _____ charged particles.
Iodine-131 is an example of a(n) _______. (131 is the mass number)
Scientist who discovered atoms were mostly empty space and had a core of positive charged particles?
What subatomic particle cannot change and be the same element?
Electrons in the outer-most energy level are called ___________.
How many principle energy levels does lithium use?
The _______ are on the left side of the table's stair step line.
The _______ are located on the right of the table's stair step line.
Who is credited with discovering the Periodic Law?
Which group on the periodic table is considered unreactive?
Which groups are called the transition metals?
Group 1 metals have ______ valence electron(s).
Modern periodic law states that properties of elements repeat in a regular pattern when elements are arranged according to _______.
Horizontal rows on the periodic table are called ______.
Vertical columns on the periodic table are called ______.
Most elements are ____ at room temperature.
Most elements on the periodic table are ________.
Characteristics such as malleable, ductile, shine and conductivity describe ______.
Characteristics such as dull, brittle and poor conductors describe _______.
Many nonmetals are ______ at room temperature.
Most semiconductors are __________.
When elements form compounds their properties ________.
Most elements tend to seek ______ valence electrons.
Opposite charged ions for _____ bonds.
Ionic compounds have _____ melting and boiling points.
Compounds that share electrons are called ______.
Sharing electrons form ________ bonds.
Metal and nonmetal forms a(n) ______ bond.
Two nonmetals will form ______ bonds.
An atom that loses an electron forms a _____ charge and is called a cation.
A regular repeating arrangement of atoms, ions, or molecules is called a(n) _____.
Dissolved ions can produce a(n) __________.
Ozone (O₃) and O₂ are examples of _______.
A diamond is an example of a _______ allotrope
1S, 2S, 2P
What are the first three orbitals closest to the nucleus?
How many electrons does the D sublevel hold?
The transition elements correspond to the ____ sublevel.
Groups 13-18 correspond to the _____ sublevel.
Groups 1 and 2 correspond to the ____ sublevel.
The inner transition elements correspond to the ___ sublevel.
Elements in the same ______ have properties similar to each other.
Moving left to right on the periodic table atomic size ______.
A negative ion is generally _____ than its neutral atom.
One of the important alloys of zinc and copper is _____.
Uranium and ____ are two actinides that are used as nuclear fuel.
1 and 2
The most active groups of metals are groups ___ and ___.
Metallic or positive ions are ______ than the neutral atom.
Alloys of the element are commonly used for it's strength and lightness.
Important in the production of batteries...
Group 2 element used in photosynthesis...
Essential element in blood which bonds to oxygen.
Gold, silver and _____ are coinage metals.
Compound or substance that speeds up a reaction
Electrons involved in the bonding process are called ________ numbers.
A compound with water molecules attached to it.
The ability for a compound to absorb water molecules is termed
Another name for a covalent compound is a __________ compound.
Typically has high melting points, made of metals and nonmetals, and written with an -ide at the end.
Typically gasses at room temperature, with a low melting point involving nonmetals which uses the Greek prefix system +-ide at end
Sketch the dot structure for carbon dioxide
Name the formula KCN
Write the formula for magnesium oxide
When writing 1S, 2S etc with arrows above them going up and down represent electrons in each sublevel you are writing the _______________.
When writing 1S, 2S ect with superscripts for the electrons in each sublevel you are writing the _____________. (Please review your sublevels and principle energy levels)
Ionic compounds __________ electrons
4 regions and 4 bonds produces what geometric shape?
4 regions and 3 bonds produces what geometric shape?
2 regions and 2 or 1 bond produces what geometric shape?
Hybridized molecular orbitals combine both the ___ and _____ sublevels to make one of equal energy
CH₄ has what kind of hybridized orbital?
Using the criss-cross method write the formula for aluminum bromide
Which formula would be correct: AlOH₃ or Al(OH)₃?
When a hypothesis is tested by many support experiments, it becomes a
The correct electron dot structure for N₂ is
What is the hybridized orbital for :N≡N:
How many pi bonds does :N≡N: have?
What subatomic particle does not have a charge?
The total mass going into a chemical reaction will always _________ the total mass being produced.
Iron III sulfide
name this ionic compound; Fe₂S₃
Group I metals are called
Group 2 metals are called
Group 17 is commonly called.
a solid dissolved in water gets labeled as an
anything that takes up space and has mass is called
the study of matter and the observable changes matter undergoes is called
Many of the periodic table symbols are ________ in origin.
What branch of chemistry would you be using if you were determining the energy transfer when water boils?
What branch of chemistry would you be using if you were finding out how much nitrogen is in a sample of air?
What branch of chemistry would you be using if you were studying the process of photosynthesis in plants?
What branch of chemistry would you be using if you were manufacturing nylon, which contains carbon
the means by which a society provides its members with those things needed and desired
the pursuit of chemistry knowledge for its own sake
research that is directed toward a practical goal or application
a logical, systematic approach to solving a problem
proposed explanation for what is observed
to test a hypothesis
a concise statement that summarizes the results of many observations and experiments
the variable tested in an experiment
the variable that is observed during an experiment. The outcome or results of testing the independent variable
How many sig figs are in the number 250
How many sig figs are in the number 010.0
4.040 x 10 ⁻³
write this number in 4 sig figs: .0040398
base unit for mass
base unit for volume
base unit for length
1 meter = ________ centimeters
1000 meters = _________ kg
Converting grams to centigrams you would move the decimal ____ places to the right. (23.82 g = ____cg)
Convert -34 degree Celsius to Kelvin
protons and electrons will ______ each other unless their is a charge on the atom
protons determine the _______ of the atom
electrons determine the _______ of the atom
Which has greater electro-negativity K or Br?
Which element is the largest of the periodic table?
ΔEN is between 0 and .4 the bond is
ΔEN is between .5 and 2.0 the bond is
ΔEN is between 2.1 and 4 the bond is
polar, dispersion and hydrogen bonds
HF has what type of bonds?
bent and pyramidal shapes are always _______
NaF has what type of bonds?
What type of particles are free to drift in metals?
H₂ F₂ N₂ O₂ Br₂ I₂ At₂ and Cl₂ are all example of _________ elements
A type of formula that shows the structure/shape, number and type of atoms in a compound.
p orbitals that overlap are called
3 regions and 3 bonds have a ___________ shape
4 regions and 2 bonds as well as 3 regions and 2 bonds produce a ___________ shape
Even though SiCl₄ has polar bonds the molecule is ____________ because there are 4 of the same Cl's around the central atom
notes, worksheets and quizzes
For anything you have trouble with, you need to review your ___________________________________