metals and non metals Flashcards
Definition - ion
an atom or group of atoms with a positive or negative charge as a result of an imbalance of protons and electrons.
definition - ionic bonding
the electrostatic force of attraction a positive metallic ion has for a negative non-metallic ion.
metal attributes?
high melting points, good conductors of electricity, good conductors of heat, high density, malleable, ductile, readily lose electrons solid at room temperature, shiny
non metal attributes?
dull appearance, poor conductors of heat and electricity, non ductile solids, brittle solids, neither tough nor strong
metalloids?
have a solid state of matter, low elasticity, brittle, physical appearance is similar to metals, metallic luster
Ammonium
NH4 (+1)
Carbonate
CO3 (-2)
Hydroxide
OH (-1)
Nitrate
NO3 (-1)
Sulphate
SO4 (-2)
Copper (II) ion
Cu (2+)
Lead (II) ion
Pb (2+)
Iron (III) ion
Fe (3+)
Iron (II) ion
Fe (2+)
Zinc (II) sulphate
ZnSO4
Sodium nitrate
NaNO3
Lithium sulphide
Li2S
Silver iodide
Agl
Calcium oxide
CaO
Why are noble gases unreactive in terms of electronic configuration?
The atoms of noble gases (group VIII) already have a complete outer shell, so they have no tendency to lose, gain or share electrons.
Precipitation?
2 solutions of soluble salts mix to produce an insoluble salt precipitate. Occurs when ions in solution combine to form a new compound of low solubility in water.
Alkali metals group?
1
Alkali earth metals group?
2
Noble gases group?
8
Halogens group
7
Monoatomic?
consisting of 1 atom in the molecule
Diatomic
consisting of 2 atoms
