<span>Groups are vertical, numbered 1 through 18, and have similar properties, so answer D. Most of the properties of groups are defined by the outermost electron in the shells of the elements. Horizontal delineations in the Periodic Table are known as periods.</span>
It's actually C because the rock cooled fast
Hi!
The Samurai is what I would attribute to the memory of Ancient<span> Japan.</span>
