Yr 10 Chemistry Ions + Bonding Flashcards
What can be seen during a reaction?
Change in temperature, colour, state.
Bubbling / Fizzing
Light / Sound produced.
What type of metals are in Group 1 of the Periodic Table?
Alkali Metals
What do atoms gain or lose during ionic bonding?
Electrons
Metals form…
Cations
Non-Metals form…
Anions
Cations are made from…
Positive Ions (lose electrons)
Anions are made from…
Negative Ions (gain electrons)
Ions are formed when…
An atom / group of atoms gain or lose electrons.
Electrons have a ________ Charge
Negative
Lost Electrons = ________ Charge
Positive
Added Electrons (dots) = ________ Charge
Negative
Group 1 = __ Charge
+1
Group 7 = __ Charge
-1
Ionic Compounds have very ____ melting and boiling points
High
Atomic Number =
Number of Protons
Mass Number =
Number of Protons + Number of Neutrons
Examples of Covalent Molecules include:
Water (H2O)
Ammonia (NH3)
Methane (CH4)
Simple Covalent molecules are ______ or ___ at room temperature
Liquid or Gas
In Covalent Bonding, what are shared?
Electrons
Group No. =
Electrons in outer shell
Period No. =
Number of electron shells
A Covalent Bond is…
A shared pair of Electrons
Weak intermolecular forces require ______ energy to break
Little
What are polymers made from?
Monomers (hundreds of them join to form long chains)
A polymer has many _______ bonds
Covalent
Allotropes are different forms of the same _______
Element
Graphite has ______ covalent bonds between atoms
Strong
Diamond is a _____ at room temperature
Solid
Fullerenes are formed from ______
Carbon
Properties of metal include:
Shiny
Vary in reactivity
Good conductor of heat
Dense
Malleable
Sonerous
Delocalised =
Can move
Lattice =
Regular repeating pattern
In Metallic Bonding, there are…
Positive metal ions surrounded by a sea of delocalised Electrons
