Krypton is a gas at normal temperatures, so its malleability is not usually an issue. Solid krypton is not malleable.
It is malleable.
Malleable is not a thing. It is an adjective to describe a material like metal is malleable. It basically means that you can change the material metal into different shapes by molding it.That's where...
indium, the chemical element with the symbol In and atomic number 49
I'm pretty sure it's non-malleable, but my source could be wrong