Definitions
Scientists and Rules
Names and Formulas
Periodic Trends
Balance the Equation
100
Anything that occupies space and has mass (3 states).
What is matter?
100
Each orbital can hold TWO electrons with opposite spins.
What is Pauli Exclusion Principle?
100
This is the formula for the polyatomic ion: Phosphate [with the charge].
What is PO₄³⁻ ?
100
When atoms ______ electrons, they become positive and get ______.
What is lose and smaller?
100
Fill in the blanks: _H2O (l) --> _H2 (g) + O2 (g).
What is 2 and 2?
200
The difference between accuracy and precision.
What is accuracy is how close a measurement is to the accepted value and precision is how close a series of measurements are to each other?
200
Hund's Rule [also called "Empty Bus Seat Rule"].
What is within a sublevel, one electron is placed per orbital before pairing them?
200
This is the formula for the polyatomic ion: Ammonium [with the charge].
What is NH₄⁺ ?
200
The lower the ionization energy, the ______ it is to remove an electron from an atom.
What is easier?
200
Fill in the blanks: 2Al (s) + 3CuCl2 (aq) --> _Cu (s) + _AlCl3 (aq).
What is 3 and 2?
300
Sometimes called "semi-conductors" and have properties of both metals and nonmetals [form "stairs" between metals and nonmetals on PT].
What is a metalloid?
300
Scientist who created the Periodic Table by organizing elements by INCREASING ATOMIC MASS.
Who is Mendeleev?
300
Name this acid: H2SO4.
What is sulfuric acid?
300
On the Periodic Table, as you move to the right, the atomic radius _____.
What is shrinks/decreases?
300
Fill in the blanks: _Al (s) + _H2SO4 (aq) --> Al2(SO4)3 (aq) + _H2 (g).
What is 2, 3, and 3?
400
A type of reaction that is exothermic and usually takes place with oxygen and an organic compound.
What is a combustion reaction?
400
Aufbau Principle [also called "Lazy Tenant Rule"].
What is electrons fill the lowest energy orbitals first?
400
Formula for Iron (II) Nitrite.
What is Fe(NO2)2?
400
This trend is the SAME trend as ionization energy.
What is electronegativity?
400
Fill in the blanks: _HCl + _Na2CO3 --> _NaCl + _H2O + _CO2.
What is 2, 1, 2, 1, 1?
500
A heterogeneous mixture where particles are suspended in the mixture.
What is a colloid?
500
Scientist who created the Periodic Table that we use today by organizing elements by INCREASING ATOMIC NUMBER.
Who is Moseley?
500
Name this organic compound: C9H18.
What is nonene?
500
On the Periodic Table, this trend increases as you move to the left but decreases as you move right starting from group 5a.
What is ion size?
500
Fill in the blanks: _Zn + _HNO3 --> _Zn(NO3)2 + NH4NO3 + _H2O.
What is 4, 10, 4, 3?