Like if I glue a small metal piece to another small metal piece... Will it stay pretty good and be strong?
hydrogen is a non-metal......
Because, under normal temperatures and pressures, hydrogen's a gas - but under extreme temperatures and pressure, such as those deep inside Jupiter, hydrogen's a metal.
Non-metal...because it's in Group One along with all the alkali metals, BUT it doesn't share the chemical properties of the alkali metals at all. It's a gas. It's special case is shown graphically by placing H above the rest of the elements on the periodic table... in the clouds a bit as it were! Ironically, Group 1 is otherwise one of the classic groups for showing a shared and well-defined progressional trend in chemical properties.
