Predict the metallic nature of the elements with atomic numbers 34, 35, 36 and 37. 

Explanation

Element with atomic number 34 is selenium. It is a metalloid. Element with atomic number 35 is bromine, It isa non-metal. Element with atomic number 36 is krypton. It is neither a metal nor a non-metal. Element with atomic number 37 is rubidium. It is a metal.