the number of protons in an atom. This #
determines the identity of an element.
What is atomic number
100
theory to predict the shape of molecules
What is VESPR
100
contain 1 double bond
What is alkenes
100
reaction gives off energy
What is exothermic
100
formula reduced to lowest terms
What is empirical formula
200
are given credit for developing the
first version of the periodic table
What is Meyer and Mendeleev
200
If two atoms have half-filled orbitals, the interactions
balance at a small enough distance so the e–’s can be close
to both nuclei at the same time
What is Covalent bond
200
are molecules with two double bonds
What is alkadienes
200
must be named using mono-, di-,
tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-.
What is molecular compounds
200
is found by simply summing
the atomic masses (on the periodic table) of each atom in a
formula.
What is Formula or molecular mass
300
energy needed to remove an electron from an atom
What is Ionization energy
300
atomic symbol surrounded by
valence electrons.
What is Lewis symbol
300
contain rings having the
same formula as the alkenes
What is cyclic compounds
300
s do NOT use di-, tri-, etc. unless they
are part of the ion name
ionic compounds are named as the positive and negative ion.
What is Ionic compound
300
Actual Yield/ Theoretical Yield x 100
What is percent yield
400
As atoms or ions get larger, the electron being removed is
farther from the nucleus… the attractions are less… the
energy needed is less… the ionization energy is less.
What is Ionization energy trends
400
bonds have partial charges + and –
What is Polar bonds
400
mixed cyanic acid (HCNO) with
ammonium hydroxide making ammonium cyanate (NH4CNO)
What is Friedrich Wohler
400
implies a fuel and three chemicals:
O2, CO2, and H2O.
What is combustion
400
1 mole of any substance contains 6.02 x 1023 molecules
What is Avagadro's number
500
properties repeat if you arrange elements
by atomic mass. The modern periodic
law arranges elements by atomic number
What is Periodic Law
500
Many ions can be explained because they have gained or
lost electrons and attain a
What is noble gas configuration
500
can be made from a di-amine & a di-acid.
What is Nylon
500
equation with spectator ions removed
What is net ionic equations
500
1 mole
6.02 x 1023 molecules
1 mole
22.4 L
1 mole
molar mass