TIGER

Assessment Questions: 52 results
Molecular_Structure : Hybridization (10 Variations)
Which of the following molecules/ions have sp hybridization around the indicated atom?
Covalent Bonding |
MO Theory
Atomic_Structure_and_the_Periodic_Table : ParaDiMagnetVideo (8 Variations)

The video shows a substance being slowly moved toward a large magnet. Which of the following ions could be in the compound seen in the video?


Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : ElectronBoxConfig (10 Variations)
Which of the elements or ions below has the following orbital box diagram?


Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : BohrConceptMap (4 Variations)
In a concept map the terms are connected with arrows. The words along an arrow can be placed between the words in two ovals to make a true statement.

An incomplete concept map is shown below, which set of terms for A, B, C and D would result in a correct map based on the concept of wave mechanics applied to a hydrogen atom?


Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : MatchElectronConfig (10 Variations)
Match the following electron configurations to the correct atoms or ions. Possible choices are: Br, Ca, Cl-, Mg2+, Mn, and Ti2+.
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : ValenceTotalElectrons (10 Variations)
Given the following electron configuration:
1s22s22p63s2
1. How many total electrons are in this species? {1:SHORTANSWER:~=12}

2. How many valence electrons are in this species? {1:SHORTANSWER:~=2}


Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : AtomicNumElecConfig (10 Variations)
An element X has atomic number 13. Which of the following statements about the electron configuration of X is correct?
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : ColorFromFrequency (10 Variations)
According to the electromagnetic spectrum, what color is light that has a frequency of 6.95x1014Hz?
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : CompareEMRadiation (12 Variations)
Which of the following have photons with less energy than those of blue light?
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : CorrectBoxDiagram (10 Variations)
Which of the following orbital box diagrams is correct?
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : EnergyInEinstein (10 Variations)
Calculate the energy of one mole of photons (an Einstein) for the 589 nm yellow line of the sodium spectrum.
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : GeneralOrbitals (4 Variations)
Which of the following statements about orbitals in multi-electron atoms is CORRECT?
Atomic Properties / Structure
Atoms,_Molecules_and_Ions : DescrSubatmParts (8 Variations)
Identify each of the following statements as describing a proton, neutron, or electron.
Atomic Properties / Structure
Atoms,_Molecules_and_Ions : CalcAtmWeight (10 Variations)
Chlorine has two naturally occurring isotopes, 35Cl and 37Cl, with masses of 34.9689 amu and 36.9659 amu, respectively. Calculate the abundances of these isotopes of chlorine.
Atomic Properties / Structure |
Isotopes
Atoms,_Molecules_and_Ions : ElemtAndSubatmParts (10 Variations)
Give the number of electron, protons, and neutrons in an atom of 14C.
Atomic Properties / Structure
Atoms,_Molecules_and_Ions : GeneralSubatmParts (7 Variations)
Which two of the subatomic particles have equal, but opposite, charges?
Atomic Properties / Structure
Atoms,_Molecules_and_Ions : NameIsotope (10 Variations)
Which of the following represents an atom that has 19 protons, 19 electrons, and 21 neutrons?
Atomic Properties / Structure |
Isotopes
Bonding : MatchBondStrength (8 Variations)
Match each of the following molecules to the best energy value for each bond. Do not use the table of bond energies in your book, but predict these values using your knowledge of bond length and bond strength.
Possible energies are: 300 kJ/mol, 330 kJ/mol, 415 kJ/mol and 950 kJ/mol.

Covalent Bonding
Conjugation (1 Variations)
A collection of 1 assessment questions about Conjugation
MO Theory |
Aromatic Compounds
Molecular_Structure : AtomFromGeometry (8 Variations)
Which atom or atoms could be the central atom, X, in the stable molecule XH3 with one lone pair of electrons?
Atomic Properties / Structure |
Periodicity / Periodic Table
Stoichiometry : CompareParticles (20 Variations)
Which has the greater number of particles, 1 mol O2 or 1 mol O?
Molecular Properties / Structure |
Atomic Properties / Structure
Atomic_Structure_and_the_Periodic_Table : CompareElectConfigs (8 Variations)
Compare the following two elements, identified by their electron configurations:

A - [Kr]4d95s2
B - [Ar]3d104s24p4

Select the answer(s) that has the correct comparison between elements.


Atomic Properties / Structure |
Periodicity / Periodic Table
Atomic_Structure_and_the_Periodic_Table : CompareRadii (10 Variations)
Which of the following have larger radii than a fluorine atom?
Atomic Properties / Structure |
Periodicity / Periodic Table
Atomic_Structure_and_the_Periodic_Table : ExplainPeriodicTrends (10 Variations)
In an isoelectronic series the ionic radii...
Atomic Properties / Structure |
Periodicity / Periodic Table
Atomic_Structure_and_the_Periodic_Table : GeneralPeriodicTrends (5 Variations)
Which of the following statements is an INCORRECT description of periodic trends for main group elements?
Atomic Properties / Structure |
Periodicity / Periodic Table
Atomic_Structure_and_the_Periodic_Table : IonizationEnerTrends (10 Variations)
Which of the following groups of elements is arranged correctly in order of increasing first ionization energy?
Atomic Properties / Structure |
Periodicity / Periodic Table
Atomic_Structure_and_the_Periodic_Table : Isoelectronic (4 Variations)
Which of the following atoms or ions does NOT have an electron configuration of [He]2s22p6?
Atomic Properties / Structure |
Periodicity / Periodic Table
Atoms,_Molecules_and_Ions : IonCharge (12 Variations)
Identify each of the following ions as having the correct or incorrect charge.
Atomic Properties / Structure |
Periodicity / Periodic Table
Atoms,_Molecules_and_Ions : CompareElements (10 Variations)
Which of the following is something that nitrogen and antimony have in common?
Atomic Properties / Structure |
Periodicity / Periodic Table
Atoms,_Molecules_and_Ions : IonChargeSubatmParts (10 Variations)
What is the charge on an ion that contains 47 protons, 62 neutrons, and 46 electrons?
Atomic Properties / Structure |
Periodicity / Periodic Table
Molecular_Structure : MolecularGeometry (23 Variations)
Which of the following molecules/ions have a linear molecular geometry like the structure shown below?

Be patient. It may take a while for the structure to load.



Covalent Bonding |
VSEPR Theory
Molecular_Structure : BondAngle (6 Variations)
Which of the following has the smallest H-X-H bond angle?
Covalent Bonding |
VSEPR Theory
Molecular_Structure : ElectronPairGeometry (20 Variations)
Which of the molecules/ions below have a linear electron-pair geometry?
Covalent Bonding |
VSEPR Theory
Molecular_Structure : IDNonpolarMolc (10 Variations)
Which of the following molecules is nonpolar?
Covalent Bonding |
VSEPR Theory
Molecular_Structure : MatchOrganicAngles (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. Its structure is shown below, although lone electron pairs are not shown.


Match the designated bond angles to the appropriate values.

Covalent Bonding |
VSEPR Theory
Bonding : EnergyBreakAllBonds (10 Variations)
Use the bond energies given in to determine the total energy needed to break all of the bonds in C3H6. (Do not use ring structures.)
Covalent Bonding |
Calorimetry / Thermochemistry
Bonding : GeneralResonIsomer (4 Variations)
Which of the following statements is true?
Resonance Theory |
Covalent Bonding
Bonding : ImpossibleStructure (10 Variations)
Which of the following formulas represent substances that are likely to be stable at ordinary temperature and pressure? A good way to decide is to ask for which of the formulas is it possible to draw a reasonable Lewis structure (one that obeys the usual rules for drawing Lewis structures)?
Lewis Structures |
Covalent Bonding
Bonding : LewisStructures (10 Variations)
Which of the following Lewis structures are CORRECT?
Lewis Structures |
Covalent Bonding
Bonding : OctetRuleExceptions (10 Variations)
For which of the following atoms are exceptions to the octet rule possible?
Lewis Structures |
Covalent Bonding
Bonding : ResonanceStructures (10 Variations)
Select the molecule(s) below for which resonance structures can be drawn.
Resonance Theory |
Covalent Bonding
Intermolecular_Forces__Liquids_and_Solids : LatticeEnergyMelting (8 Variations)
Which of these substances has the highest melting point?
Ionic Bonding |
Covalent Bonding
Reactions : HighOxNumber (10 Variations)
In which of the following does sulfur have the highest oxidation number?
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Properties / Structure
Reactions : IDOxidationNumber (10 Variations)
What is the oxidation number of sulfur in barium sulfate (BaSO4)?
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Properties / Structure
Bonding : CompareBondLength (5 Variations)
Which of the following compounds has the shortest bond between nitrogen and oxygen?
Covalent Bonding |
Molecular Properties / Structure
Bonding : Electronegativity (8 Variations)
From the bonds listed below, choose the one in which the highlighted atom is the partially positive end of the bond. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
Bonding : MostPolarBond (8 Variations)
From the bonds listed below, choose the one that is the most polar. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
Bonding : OrganicBondLength (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. The structure for this compound is shown below, although lone electron pairs are not shown. Which of the following bonds in the structure is the shortest?

Covalent Bonding |
Periodicity / Periodic Table
Bonding : IonicOrCovalent (10 Variations)
Match the following formulas to the correct type of bonding: ionic or covalent.
Molecular Properties / Structure |
Covalent Bonding |
Ionic Bonding
MO Theory (11 Variations)
A collection of 11 assessment questions about MO Theory
MO Theory |
Reactions |
Addition Reactions |
Free Radicals |
Alkenes |
UV-Vis Spectroscopy
Covalent Bonding (11 Variations)
A collection of 11 assessment questions about Covalent Bonding
Carboxylic Acids |
Acids / Bases |
Resonance Theory |
Covalent Bonding |
Phenols |
Amines / Ammonium Compounds |
Free Radicals |
Alkenes |
Amides |
Ethers
Bonding (34 Variations)
A collection of 34 assessment questions about Bonding
Molecular Properties / Structure |
Covalent Bonding |
IR Spectroscopy |
VSEPR Theory |
Aromatic Compounds |
Lewis Structures |
Resonance Theory |
Aldehydes / Ketones |
Carboxylic Acids |
Acids / Bases