No. Or more precisely, not necessarily. Mercury is a metal but is liquid at room temperature.
Mercury is not a solid at room temp.
At room temperature curium is a solid radioactive metal.
Solid metal
Vanadium is a solid metal at room temperature.
It is supposed that lawrencium is a solid metal at room temperature.
At room temperature plutonium is a solid metal.
Berkelium is a solid metal.
Promethium is a solid metal.
Curium is a solid metal.
Nobelium is a solid metal.
At room temperature plutonium is a solid, radioactive metal, very dense.
Chromium (Cr) is a transition metal.Chromium is a solid metal at room temperature.