For each of the following questions give the name of an element from period 2 lithium to neon which matches the description elements may be used once more than once or not at all 
a) an element which has atoms with a full outer shell of electrons 
b) an element which exists as both diamond and graphite 
c) an element that reacts vigorously with cold water 
d) a soft metallic element which is stored in oil 
PLEASEEE