Show:
Ionic Bond
Covalent Bond
Metallic Bond
Lewis Structure
VSEPR
100
How is an ionic bond formed?
Attraction between Cation and Anion
100
How is a covalent bond formed?
two atoms sharing electrons.
100
What is the common property of valence electrons in all metals?
Sea of electrons
100
What is octet rule?
Most atoms have the goal of getting 8 electrons in the outer most shell.
100
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
200
What are the electrons involved in the formation of a chemical bond called?
Valence Electron
200
What is the concept describing types and numbers of atoms joined in a single molecule of a molecular compound?
Molecular formula
200
Double bond and triple bond, which one is longer?
Double bond is longer.
200
How many single electrons are there in a nitrogen atom?
3
200
What is the shape of HCl?
Linear
300
A bond has 47% ionic character. Is it an ionic bond?
No. It has to have more than 50% ionic character to be an ionic bond.
300
Is the bond in HCl polar or nonpolar covalent?
polar covalent
300
Is H2O an ionic compound, a covalent compound or metallic?
covalent
300
How many single bonds are there in CO2?
Zero.
300
What is the shape of water molecule?
Bent
400
Does a solid ionic compound have freely moving electrons?
No
400
What is London Dispersion Force?
Temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
400
Which one conducts electricity better, metal or nonmetal?
Metal
400
Which one of the following is NOT a diatomic element? A. Neon B. Oxygen C. Fluorine D. Nitrogen
A. Neon
400
What is the shape of methane molecule, CH4?
Tetrahedral
500
Does ionic compound usually have high melting point?
Yes
500
What are the three types of forces for bonding interaction? (You have to get all three right to get the score)
nucleus-nucleus repulsion electron-electron repulsion nucleus-electron attraction
500
Why is metal malleable?
Because valence electrons in metals freely move around and served as "lubricant" for layers of metal atoms.
500
Why does HF have a higher boiling point than F2?
HF has hydrogen bond and F2 doesn't.
500
What is the shape of CO2 molecule?
Linear