Ionic Properties
Covalent Properties
Structural Diagrams
Chemical Formulas
Periodic Table
100
What is an ion? (Tyler)
A charged atom/molecule.
100
What is the importance of a covalent bond? (Emma)
Covalent bonds allow molecules to share electrons with other molecules.
100
If the elements Silicon and Nitrogen were forming together, which element would be the center of the structural diagram? (Kole)
Silicon, because it's in group 14. (Like Carbon)
100
When writing chemical formulas, is the Cation or Anion written first? (Emma)
Cation.
100
Which group of elements has 1 valence election? (Kole)
Group 1.
200
What are the properties of an electron? (Koby)
Negative charge, less than one AMU in mass, and is located outside of the nucleus.
200
How many lone pairs does CH2O2 have? (Tyler)
2
200
Write H2O in Lewis Structure form. (Koby)
200
What is the chemical formula for Barium Phosphate? (Stiehl)
Ba3(PO4)2
200
What orbitals does element Sb have? (Aurora)
Orbitals s, p, and d.
300
Explain the difference between metallic ions from the ions in ionic solids. (Emma)
Metallic ions have positive nuclei islands in negative electron seas, while ions in ionic solids just have positive ions attracted to negative ions.
300
What are four properties of covalent compounds? (Stiehl)
Low boiling and melting points, various colors, poor heat/electricity conductors, and brittle solids.
300
Draw the Lewis Structure for NH3. (Aurora)
300
Is the following chemical formula Magnesium Sulfide or Magnesium Sulfate? MgSO4 (Emma)
Magnesium Sulfate.
300
DAILY DOUBLE
When was the periodic table created, and by who? (Emma)
1869, by Dmitri Mendeleev.
400
What is ionization energy, and what are its periodic trends? (Caitlyn)
Ionization energy is the minimum energy required to remove an electron from the ground state of an atom. It's a periodic trend that increases going from top to bottom, and then left to right across the periodic table.
400
Predict the relative bond-dissociation energies needed to break the bonds in this structure: H - C = C - H; note: double bond should be a triple bond. (Aurora)
H - C is less energy than C (triple bond) C.
400
Draw the Lewis Structure for Dicarbon Tetrahydride. (Koby)
See Dearborn...
400
What is the octet rule, and what is it called when atoms reach it? (Natalie)
Atoms will lose, gain, or share electrons to have a full set of 8 electrons. It's called a pseudo-noble gas when an atom has a full octet.
400
What is periodic law? (Morgan)
Periodic law is the periodic repetition of chemical and physical properties of the elements when they are arranged by increasing atomic number.
500
All uncharged atoms have valence electrons. Explain why elements, such as Iodine and Sulfur, don't have metallic bonds. (Aurora)
They gain electrons, meaning their electrons aren't delocalized.
500
What 2 primary properties would you use to identify a covalent substance, and how would you test those? (Dearborn)
Conductivity and boiling point. It's either conductive or not at all, so that is easy to test. Boiling point would require the substance to be heated, and the boiling point to be measured and compared.
500
What is the Lewis Structure of [CN3H6]+? (Stiehl)
See Dearborn...
500
Give an example of 3 types of chemical formulas. (Cadence)
P2O5 - Empirical, shows simple and whole number ratio of atoms in a compound.
C8H18 - Molecular, shows number of each type of atom in a molecule.
(Any Lewis Structure) - Structural
500
What are all of the letter groups in the periodic table, and what areas do they represent? (Emily)
s: Columns 1, 2, and the element He
d: Columns 3-12
p: Columns 13-18, except He
f: Introduced in Column 3, represents elements 57-71 and 89-103