What is needed to make an IONIC bond?
Metal AND Non-Metal
What is needed to make a COVALENT bond?
Non-Metals
What do the SINGLE dots in the Lewis dot structure represent?
Valence electrons
What is the Molecular Geometry for CO2
Linear
what type of BOND is soluble (dissolves) in water?
Ionic
What does Mr. Dickson say about Metals?
(metals in an ionic bond)
Metals are "losers"
What happens to valence electrons when a covalent bond is formed.
Electrons are SHARED between two non-metal atoms.
What is the Central Atom in HCN?
C
Give one example of a DIATOMIC molecule
H2, N2, O2, Cl2,F2, I2, Br2
What is the difference between a cation and an anion?
Cations are positively charged and anions are negatively charged
Covalent bonds are:
(weak or strong)
Weak
Draw the Lewis Dot Structure for NH3
..
H-N-H
|
H
What is the Molecular Geometry for NH3?
Trigonal Pyramidal
(VSEPR is Tetrahedral)
How many single dots does it take to make a double bond?
4
What happens to the valence electrons when an ionic bond is formed?
They are transferred (lost or gained) from a metal to a non-metal.
Draw the Lewis Dot Structure for CO2
: :
:O=C=O:
Describe what electrons are like (what they do) in a Metallic Bond (sea model)
Electrons move freely
What shapes do IONIC bonds make (such as NaCl)
Crystal or Lattice
Draw Lewis Dot for C2H2
How many BONDS(electron pairs) between the two Carbons (C & C)?
H-C=-C-H
3 Bonds or PAIRS
What is the Molecular Geometry for H2CO
Bent
Which bond is strongest?
(Ionic, Metallic, Covalent)
Ionic