4. Write the charge of each ion. Here are some other examples of dot and cross diagrams for the formation of ions in some ionic compounds – magnesium oxide and calcium chloride.

You’ve probably heard of the chemical calcium in milk. But calcium shows up in lots of other stuff too. For example, the hard part of your bones and teeth is made from calcium connected to a chemical ...

Calcium's leading role is legendary. In fact, there seems to be no end to calcium's repertoire: It strengthens bones and teeth and new studies suggest that it may also prevent colon cancer, and ...

James Lewis writes on technology and strategy at the Center for Strategic and International Studies (CSIS). Before joining CSIS, he was a diplomat and a member of the Senior Executive Service. Lewis ...

While we wouldn’t want to document a computer motherboard with ASCII schematics, it’s great for a quick-and-dirty circuit diagrams. Not exactly schematics, but [Duckman] has some Arduino ...

By using three broad types of measurements—working capital, asset performance, and capital structure—you may evaluate the strength of a company's balance sheet, and thus, its investment quality.

C-O bond–forming reaction of a phosphine oxide Lewis base with a carbenium Lewis acid. Crystallographic studies show that the C-O distance in the outer form exceeds that of the final or inner ...

"The structure of graphene oxide manufactured chemically is very difficult to reproduce—it will always be different. And after a while, it begins to degrade, and the properties of the oxide ...