What is the name of the rule for covalent bonds that describes what occurs when two atoms of the same or different elements combine and begin sharing electrons with the purpose of becoming as stable as possible?
100
The ability of an atom to draw electrons toward itself to create a bond and its tendency to lose, gain or share electrons when it combines.
What is Electronegativity?
100
There are two types of covalent bonding
How many types of covalent bonding exist?
100
Relatively low melting and boiling points
Gases at room temperature
Poor electrical and heat conductors
Many of them are soluble in non-polar liquids
Molecules
What are some Physical Properties of Compounds?
100
Gilbert Newton Lewis
Who discovered Covalent bonding?
200
With most elements the union of the atoms is based on filling the higher energy levels, S and P, which hold up to eight electrons and are also called the valence electrons.
Why is the rule called octet?
200
When the electronegative force of both elements is somehow equal.
When is a a covalent bond formed instead not an ionic bond?
200
Polar Covalent Bonds
Non-polar Covalent Bonds
What are the names of the two species of covalent bonds?
200
Because of the Physical Properties of Compounds
How can we know that covalent bonds are naturally attached together?
A big difference in the electronegativity of the atoms.
What characteristic makes an ionic bond instead of a covalent bond?
300
Polar Covalent Bonds
How are the bonds formed by different atoms called?
300
They act in a stabilized manner.
How do atoms in covalent bonds act?
300
Metallic bond
Aromatic bonding
Electron-deficient bonding
Hypervalent bonding
Resonant bonding
One- and three-electron bonds
What are some types of bonding?
400
Hydrogen, beryllium and boron, because they don't have enough space and enough electrons to form an octet.
Which elements are an Electron Deficient Molecule? Why?
400
A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
What does Ionic bond mean?
400
Non-polar Covalent Bonds
What is the name of the specie of covalent bonds that forms when two atoms from the same element unite?
400
Other molecules that surround the bond.
What are covalent bonds not generally attracted to?
400
In 1704, Isaac Newton
Who and when formulated the atomic bond theory?
500
Bonds that have more than eight electrons in their outer energy level. They are formed by elements found after period three, which are able to get excited enough to use d orbitals to bond and have a greater amount of atoms.
What is an Expanded Octet?
500
H2 - hydrogen
H2O - water
HCl - hydrogen chloride
CH4 - methane
NH3 - ammonia
CO2 - carbon dioxide
What are some examples of Covalent Bonding?
500
Gilbert Newton Lewis
Who discovered the two types of covalent bonds?
500
Poor conductors of heat and electricity.
What are covalent bonds not good at? What are they poor at doing?