Answer:
Answer: II and IV
Explanation: Flammability and the ability to rust are chemical properties because they change an object. I, III, and V are physical properties because it doesn't change the object's composition. This includes weight, the change in matter (solid to liquid), or change in volume.
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Explanation:
Element with the same number of shells is element with the same period in periodic table,while element with the same numbers of valence electron is element in the same group .it also have similar chemical properties but different physical properties
