The energy required to remove 1 mole of electrons from 1 mole of gaseous atoms to produce 1 mole of gaseous ions.
100
What are LDF's?
Small (electrostatic) forces that are caused by the movement of electrons within the covalent bonds of molecules that would otherwise have no permanent dipole.
100
Do covalent bonds share or loose electrons?
Share
100
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
100
If atoms have equal numbers of protons and electrons the they have...?
No overall charge
200
How do you calculate Zeff?
It is calculated by subtracting the shielding effect of the electrons from the positive charge of the nucleus.
200
What increases the dispersion forces?
Increasing number of electrons in the molecule and increasing surface area.
200
If in ionic bonding, valence electrons are transferred from one atom to another, why does the ionic bond form?
It is formed due to the strong electrostatic (Coulombic) attraction between the particles.
200
What is VSEPR used for?
To predict the shapes of covalent molecules and polyatomic ions from Lewis diagrams.
200
Charged particles are called..?
Ions
300
What is the color of Fluorine gas?
Pale green
300
What are Polar Bonds caused by?
Differences in electronegativity.
300
Metallic bonding occurs in....?
Metals
300
VSEPR is based upon valence shell electrons repelling each other so that they are as far apart as possible and hence..?
Minimize that repulsion.
300
Ionic Bonds are strong...............bonds, caused by the attraction between the.................. charged ions and are usually formed between.............and.................
intra, oppositely, metals, non-metals
400
What is Electronegativity?
The ability of an atom to attract electrons to itself within a covalent bond.
400
What is the effect of Hydrogen Bonds on the boiling points?
Higher Boiling points, increased viscosity.
400
How will the electrons in an atom be equally chaired?
If they have the same electronegativity
400
What is the geometry if the hybridization is sp3?
Tetrahedral
400
What is an ionic bond?
The attractive force between the ions.
500
Based on the information below, element X is in which group of the periodic table?
Ionization Energies for Element X (kJ/mol)
First Second Third Fourth Fifth
540 1651 2650 14921 17345
(A). G 1
(B). G 2
(C). G 13
(D). G 14
(C). G 13
The largest energy gap is from third to fourth, element X must achieve noble gas configuration after losing 3 electrons.
500
If a dipole increases and so does its polarizability, the what does this mean?
It is a stronger dipole (nonpolar)
500
Bond length is defined as..?
The distance between the nuclei of the atoms.
500
What is used when more than one feasible Lewis structure exists?