periodic table

Cards (3)

  • physical characteristics of grp 1 metals

    -shiny
    -soft and easily cut with a knife
    - low density and low melting pt
  • trend as we go down grp 1 metals and reason why.

    melting and boiling point deacreses
    reactivity of elements increases. as the atomic radii uncreases, attraction btw between the nuclues and the valence electrons deacreses, hence melting point deacreses. the futher away the valence electron is the more easily it loses tue electron more reactive
  • chemical properties of group 17 elements
    bpt and mpt increaeas
    diatomic
    nonmetals
    colour of elements get darker
    reactivity deacreases