Table of Contents

pg 3- Introduction of Tungsten pg 15,16 - Glossary

pg 4- Physical & Chemical Properties of Tungsten

pg 5- Chemical Changes

pg 6- Periodic Table

pg 7- The Atomic Number and Atomic Mass

pg 8- Bohr Rutherford Diagram

pg 9- The Discovery of Tungsten

pg 10- How I Got My Name, Tungsten

pg 11- 3 Different Compounds That Contain Tungsten

pg 12- Common Uses of Tungsten

pg 13- Interesting Facts About Me

pg 14- How Does Tungsten Effect the Environment

Introduction of Tungsten

Hi I'm the element called Tungsten!

In this book you're going to learn about me, where I came from,

what I am used for,and where

you might see me.

So lets go!

Physical Properties of Tungsten:

Form - different crystal shapes State of matter - solid

Color - black, or dark grey Luster - metallic,shiny

Hardness - can't be scratched easily

Clarity - opaque ( you can't see through it)

Physically, I am a solid metal in the form of shiny, usually black, crystals. Tungsten is strong metal, but when I am pure I'm soft and can be cut easily with a butter knife! Since I can't be bent or folded easily, I'm called non-malleable.

Chemical Properties: I CAN be burnt with heat, I don't rust, and I don't react with acids

Chemical Changes

With heat, I will react with oxygen to make a substance called trioxide tungsten.

I also react with fluoride (the fluid the dentist uses to clean your teeth), at room teperature to make a substance called tungsten fluoride.

I also react with chlorine (the substance that is put in swimming pools) to make tungsten chloride!

Now lets see where I am on a chart called the Periodic table of elements!....

Periodic Table

On this chart you can see all of the symbols for each element.

My symbol is the W, oh look there I am!

The rows on the

Periodic table

are called periods.

The columns are

called families.

You can find me

in Family 6, and in

Period 6.

The Atomic Number and Atomic Mass

The Atomic Number of an element represents how many protons (positives) are in it's atom's nucleus.

Tungsten's Atomic Number is 74, so that means Tungsten has 74 protons!

The Atomic Mass of an element

represents how much mass is in the

atom, or how heavy the atom is.

Tungsten's Atomic Mass is 183.85 !

This is a Bohr Rutherford Diagram of my atom! Since I am a balanced atom, I have the exact same amount of protons as electrons. So those black dots on the diagram represent my 74 electrons.

Inside the nucleus ( the yellow area) it says N:110, that means that I have 110 Neutrons! Neutrons are the parts of the atom that keep it stable.

Bohr Rutherford Diagram

The Discovery of Tungsten

Who Discovered Tungsten?

A man named Peter Woulfe was the first person to have the idea that an element could be discovered from a mineral called Wolframite. But, he wasn't the person who actually discovered me!

Two brothers named Juan José and Fausto Elhuyar were the real discoverers. They extracted Tungsten from an acid that was made from Wolframite.

My name comes from the Swedish words tung sten. It means "heavy stone". My symbol, the W, comes from German name Wolfram which came from the mineral Wolframite!

How I got My Name, Tungsten!

3 Different Compounds that Contain

Tungsten

1.)Mineral Scheelite - a calcium tungstate mineral! It's formula is CaWO4. It is used in manufacturing of hard metals

2.) Wolframite - the mineral which is the origin of myself! It's formula is (Fe2+)WO4to (Mn2+)WO4. One of its uses is for automotive parts.

3.)Stolzite (lead tungstate) - a minor ore of tungsten.

It's formula is PbWO4 and it is a rare and desired mineral to collectors.