Atomic Structure
The three subatomic particles
What are protons, neutrons, and electrons?
The mass of one mole of a substance.
Molar mass
Convert 2 moles of lithium into grams.
13.882 g
The representative unit for ionic compounds
Formula units
What is the atomic number?
The number of atoms in an element
These two particles are located in the nucleus
What are protons and neutrons?
The number of representative units in one mole
6.02 x 1023 (Avogadro's number)
Convert 83.2 g of manganese into moles.
1.51 moles
The representative unit for covalent compounds
Molecules
What is the mass number?
The number of protons and neutrons in an atom
This model suggested that electrons were lumped in with protons and neutrons.
What is the plum pudding model?
The molar mass of carbon.
What is 12.011 g?
Convert 1.5 moles of Au into atoms.
9.03 x 1023 atoms
How many molecules are in one mole of H2O?
6.02 x 1023
What is the chemical symbol of an element?
The 1-2 letter abbreviation found on the periodic table
These two subatomic particles have opposite charges.
Protons and electrons
The molar mass of N2O.
What is 44.01 g?
Convert 4.05 x 1023 atoms of Ag into grams
72.57 g
What is the representative unit for an element?
Atom
Which of these are isotopes?
C-12
N-14
B-12
C-14
C-12 and C-14
Two atoms with the same number of protons, but different numbers of neutrons
Isotopes
The molar mass of oxygen.
What is 31.9996g?
Convert 60.05 g C2H4O2 into molecules.
*Double Points*
6.02 x 1023 molecules
What is Avogadro's number?
6.02 x 1023
What is the weighted average mass of all naturally occurring isotopes of an atom?
Atomic Mass