What are the distinguish properties of metals and non-metals?

Is valency of a metal the no. Of electrons in the outer shell of an element???

Could someone pleeease tell me the distinguish between an Atom and an Element. I am confused here :s Help me. I need the answ...

who can tell me this please? I really need to know. I've got an exam in a week and this is one of the basic things on it. I w...

How do protons, neutrons, and electrons determine the properties of an atom?

My science teacher said that water being a solvent is the best property of water can someone explain why? Cause I thnk changi...

Alright, so I've embarked on another story. There's going to be a lighthouse in it, but it's set in a time where there's no e...

Osmium is the most dense metal what is the most dense alloy?

So there was a suspension bridge that got destroyed by a gentle gust of wind (35-40 mph) a few decades ago. The vibration of ...

Hey anyone reading this, I can't get them in correct order. Could you tell me the mostly chemically active to least chemicall...

so we are learning about ionic and covalent compounds, and what I just don't get is WHY its ionic or covalent! an example! Ca...