Final answer:
A glass or plastic spatula is used when handling iodine because metal spatulas can contaminate or react with iodine. Glass or plastic spatulas are inert and do not react with iodine.
Step-by-step explanation:
The type of spatula used when handling iodine is a glass or plastic spatula. This is because iodine is a volatile substance that can react with metal spatulas and cause contamination or release toxic gases. Glass or plastic spatulas are inert and do not react with iodine, ensuring the purity and safety of the substance.