Ionic bonding & substances

• what are ions ?

  charged particles
• what are anions ?

  negatively charged ions formed when they gain electrons
• what are cations ?

  positively charged ions formed when they lose electrons
• what is the charge of group 1 elements ?

  +1
• label the charges for each column

  A) 1+

  B) 2+

  C) 3+

  D) 3-

  E) 2-

  F) 1-

  G) 0

  
• what are the charges for Ag, Cu, Fe, Fe, Pb, Zn ?

  Ag: +1

  Cu: +2

  Fe: +2

  Fe: +3

  Pb: +2

  Zn: +2
• what are the charges for hydrogen, hydroxide, ammonium, carbonate, nitrate and sulfate ?

  H: +1

  OH: -1

  NH4: +1

  CO3: -2

  NO3: -1

  SO4: -2
• what is an ionic bond ?

  Electrostatic attraction between oppositely charged ions
• how are ionic bonds formed ?

  when a metal and a non-metal react together
• what type of structure do ionic compounds have ?

  lattice structure
• do ionic compounds have high or low melting and boiling points and why ?

  High, this is because they have strong electrostatic forces of attraction between ions meaning a lot of energy is needed to overcome the strong attractions.
• can ionic compounds conduct electricity ?

  when ionic compounds are solid they cannot conduct electricity but if melted or dissolved by water they will become conducters