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Ionic and Covalent Bonds
This is an atom or group of atoms that has an electric charge
When an atom loses an electron, it loses a negative charge and becomes a _________.
When an atom gains an electron, it gains a negative charge and becomes a _______.
This type of bond is made between a Metal and a Non-metal
This is a combination of symbols that shows the ratio of elements in a compound. Ex: H2O
This tells you the # of atoms present for the element and is located to the right of the # in a formula unit. EX: There are 2 atoms of Hydrogen (H) in the formula unit H2O
For an ionic compound, the name of the ______ ion comes first, followed by the name of the Anion.
These elements always lose electrons and become Cations
These elements always gain electrons and become Anions
The electrons responsible for an atom's chemical behavior are called ______________.
Atoms want to have 8 electrons in their outer most energy level
a Metal + a Non-metal
What type of elements will always make an Ionic bond?
a Non-metal + a Non-metal
What type of elements will always make a covalent bond?
Bond made between at least 2 Non-metal atoms
The seven elements that naturally have 2 atoms share electrons. These elements are Br, I, N, Cl, H, O, and F
a neutral group of atoms joined together by covalent bonds
How many electrons does Phosphorus (P) need to have an octet?
How many electrons does Oxygen (O) need to have an octet?
How many electrons does Iodine (I) need to have an octet?
Gilbert Lewis invented the method of identifying the # of valence electrons an element can make a bond called __________
Cation(s) and Anion(s) combine to cancel out their charges in this type of bond
Electrons being shared between at least 2 atoms in this type of bond
Electrons being "transfered" between at least 2 atoms in this type of bond
Which atom does not make a diatomic molecule?
1) Oxygen (O)
2) Nitrogen (N)
3) Boron (B)
4) Bromine (Br)
An element's __________ will tell you the # of valence electrons it contains