Mercury is an elusive and toxic element.



Chemistry - Periodic Table - Learni

ng Points.

Mercur

y is a rare element.

Mercury is

a liquid at room temper

ature.

Mercury is highly...

A systematic arrangement of the chemical elements.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

Any of the metallic elements from the central block of the periodic table.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

The non-metal elements are found to the right of the Periodic Table.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Iron is crucial in many areas of life: it is found in our blood, as well as being used to build bridges. Chemistry - Periodic Table - Learning Points. Iron is one of the most common element on Earth. Iron is found in living organisms....

Hydrogen is a highly flammable element, with the potential to become a non-polluting alternative to gasoline. Chemistry - Periodic Table - Learning Points. Hydrogen is the element with the lowest density. Hydrogen is highly flammable and...

Discover the vital role uranium plays in nuclear technology. Chemistry - Periodic Table - Learning Points. Uranium was discovered in 1789. Uranium was named after the planet Uranus. Uranium is weakly radioactive. Uranium is important in...

Potassium is one of the most unpredictable elements, a soft metal that is essential to life.



Chemistry - Periodic Table - Learni

ng Points.

Potass

ium is a soft metal.

In our bodies potassium...

In 1869, Russian scientist Dmitri Mendeleev created the Periodic Table, ordering the naturally occurring elements by their structure and properties. His Periodic Table changed the course of Chemistry forever, and even predicted the...

When Mendeleev created the Periodic Table in 1869, he also predicted the existence of elements yet to be discovered, including gallium. What are the properties of this rare metal and why was its discovery so important? Chemistry -...

The story of chemist John Newlands and his theory of the "Law of Octaves" that related chemical elements to notes in the musical scale. Did the scientific community accept his unusual theory and does it hold up to the laws of modern...

Witness the exciting reactions that occur when alkali metals come into contact with other substances. What does this tell us about their properties? Chemistry - Periodic Table - Learning Points. The alkali metals make up Group 1 of the...

The noble gases were one of the last groups of elements to be discovered. From helium balloons to light bulbs, these gases have many uses in the world around us. Chemistry - Periodic Table - Learning Points. The noble gases are found in...

The discovery and uses of reactive metals throughout history, and how their uses have defined the period in which they were discovered. Chemistry - Periodic Table - Learning Points. The reactivity series ranks the chemical reactivity of...

Transition metals are the largest group in the periodic table. Find out what similarities they share, and how we make use of these metals. Chemistry - Periodic Table - Learning Points. Transition metals are found as a block in the middle...

We compare the reactivity of Group 1 and Group 2 metals. We add sodium and then potassium to water. We observe the reactions. Next we add magnesium and then calcium to hydrochloric acid and observe the reactions. The results let us put...

What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the...

Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements? Chemistry - Periodic Table - Learning Points. The halogens are the elements in Group 7 of the periodic table. The...

By the end of this learning object, the student will be able to: recognize the fundamentals of the periodic table.14977

By the end of this learning object, the student will be able to: Recognize the efforts and attempts of some scientist to classify elements.4430

Learn every element of the Periodic Table with The Periodic Table Song by KLT!

Electronegativity is the tendency of an atom to gain an electron. The way I think about it is like tug of war. The stronger an atom can pull in an electron, the higher it’s electronegativity will be. The trend for electronegativity is...

Ionization energy is the amount of energy it takes to remove an electron. The stronger the nucleus can hold on to the electron, the more energy that will be needed to remove the electron. The trend for ionization energy is that it...

The periodic trend for atomic size is that the size of the atom gets bigger as you go down the periodic table and from right to left across the periodic table. This trend is sometimes referred to as atomic radius as there is a direct...