Please enable JavaScript.
Coggle requires JavaScript to display documents.
Metal (14,15,16) - Coggle Diagram
Metal (14,15,16)
Periodic table
2 types of elements
metal (most) + non-metal
overall
most are : metal + smaller : metalloids + semimetals
properties of metals (2 types)
Chemical properties (reaction with water,...)
A reactivity series
Formula (cold water, steam, acid, oxygen)
Water/steam
Metal(s) + water(l) -> Metal hydroxide + Hydrogen
Metal hydroxide soluble/insoluble ?
SNAP
Metal(s) + steam(g) -> Metal oxide (s) + hydrogen(g)
most metal react with acid
Metal(s) + acid(aq) -> salt + Hydrogen
oxygen
unreactive metal (gold, plantinum) : dont react;
reactive metal (ex: alkali metal) : easily react
Copper/iron : react but slower
Formula
metal + oxygen -> metal oxide
physical properties (6)
Conduct heat + electricity
Explaination
(4) +delocalised electrons carry + current +when voltage applied + move thru metal structure (griant metallic lattice)
(4) delocalised electrons, metal ions + transfer kinetic energy + thru vibrations + thru metal structure (giant metallic lattice)
Malleable (can be hammered + made into different shapes)
Explaination (3)
layers of positive metal ions + slide over each other + delocalised act ~ glue -> keep metallic bond -> structure dont break
explaination (3)
Ductile (can be drawn into wires)
High melting/boiling point
Explaination (3-4)
Electrostatic attraction between delocalised + positive metal ions -> strong -> requires lots of energy to break
*not ionic bond
Metalloids + semimetals