BoronAluminumGalliumSelenium
It is going to be SeleniumBoron, Aluminum, and Gallium are all in the same column in the Periodic Table of ElementsAll elements in the same columns have the same number of electrons in their valence shellIn the case of Boron, Aluminum, and Gallium, they all have 3 electrons in their valence shellSelenium has 6.
I would buy the welderthey're actually quite handy to have
you should not use a gas welder on aluminum - you should be using a tig welder Gas is good for steel
Magic! (You have to believe).