1. J04/2/5.
Look at the list of five elements below.
argon bromine chlorine iodine potassium
–(a) Put these five elements
in order of increasing proton number.
[1]
–
–(b) Put these five elements
in order of increasing relative atomic mass. [1]
–
–(d) Which of the
five elements in the list are in the same group of the Periodic Table? [1]
–
–(e) (i) From the list,
choose one element which has one electron in its outer shell. [1]
–
– (ii) From the list, choose one element which has a full
outer shell of electrons. [1]