Chem Math Skills
Matter
The Atomic Structure
The Periodic Table
Periodic Trends & Electrons
Chemical Bonding
100
Sig fig 500
1
100
Classify pizza
Heterogeneous mixture
100
element with 9 protons
Fluorine
100
Family Fluorine
Halogen
100
Element with highest electronegativity
Fluorine
100
Types of chemical bonds
Covalent, metallic, and ionic
200
Convert 1000 mL to L
1 L
200
Give an example of an element
Na, O, Cl, etc. (anything on the period table)
or O2, I2, O3, etc.
200
How many neutrons does O—14 have?
Mass - Atomic # = Neutrons
6 neutrons
200
Valence electrons He
2
200
Element with largest atomic radius
Fr
200
Shared electrons
covalent
300
sig fig 0.0010
2
300
Classify air (78% N2, 21% O2, 1% trace)
Homogeneous mixture
300
What is the charge for an atom with 20 protons, 20 neutrons, and 18 electrons?
+ 2
300
Valence electrons oxygen
6
300
Element in group 1 with highest ionization energy
H
300
Metal + non metal
ionic
400
Convert 100 m to km
0.1 km
400
Classify NaO
Compound
400
What is the mass number for an atoms with 20 protons, 22 neutrons, and 18 electrons?
42
20 Protons + 22 Neutrons
400
3 energy levels, 1 valence electron
Na
400
Most reactive metals
alkali metals
400
Low melting point
Covalent
500
What is the % error if the theoretical yield = 9 g
and the actual yield = 8.1 g
% error = [(theoretical value - actual value) / actual value] x 100
Sig fig!
10%
500
Classify O2
Element
500
How many electrons does Fluorine have?
9
500
family helium
Noble gases
500
least reactive family
noble gases
500
Name: Na2O
Sodium oxide
600
What is 28,000 in scientific notation?
2.8 x 104
600
Give an example of a chemical property
toxicity, flammability, reactivity
600
What is the atomic number for an atom with 17 protons, 18 neutrons, and 17 electrons?
17
600
family sodium
Alkali metals
600
most reactive non metals
halogens
600
Name: NF3
Nitrogen trifluoride
700
What is 5.6151 × 10-1 in decimal (standard) notation?
0.56151
700
Give an example of a physical property
Color, mass, density, volume, state of matter, texture, viscosity, etc.
700
APE
Atomic # = Protons = Electrons
700
Subatomic particles?
protons: 3
electrons: 3
neutrons: 8
700
element with electron configuration: 1s22s22p4
Oxygen
700
Chemical Formula: Copper (I) sulfide
Cu2S
800
Convert 0.02 g to cg
2g
800
Give an example of a physical change
cutting paper, ice cube melting, etc.
800
isotope
same # protons, different # neutrons
800
isotope name for a nucleus with 52 protons and 65 neutrons
tellurium-117
800
Name the family with + 2 oxidation number
Alkaline Earth Metals
800
Chemical Formula: trisulfur diiodide
S3I2