1. Calendar: Periodic Table of Days
This article is a good introduction to the periodic table. It uses a calendar to introduce periodicity–repeating patterns.
2. Dmitri Mendeleev’s Periodic Table
A follow-up article to Calendar: Periodic Table of Days. It provides history information about the origin of the periodic table of elements. Compares Mendeleev’s first arrangement of the table of elements with current table, which is bases on the periodicity of atomic numbers.
These articles are available, but I will be revising them. So, check back and refresh your page to see new edits.
Atoms: Atomic Structure
What are atoms made of? Where are the atomic parts located?
Every element has a specific atomic number. No two elements have the same atomic number.
Atomic Particles: Names of Atomic Parts
What are nucleons? Protons? Neutrons? Electrons? Where is an atom’s nucleus? What is in the nucleus?
Atomic Particles: How to Draw Atomic Structures
Atomic Particles: Worksheet
What are the different atomic particles in an atom of calcium? Where are the different particles located?
Calendar: Periodic Table of Days
Things that repeat according to a pattern are said to be periodic. For example, on a calendar, the days are in numerical order in rows from left to right. Each week on a calendar (horizontal row) is one PERIOD. On a calendar, every seventh day falls on the same day.
What are the names of the different parts of the periodic table.
An element is a chemical made up of one kind of atom. The known elements are listed on a chart called the Periodic Table. The elements are not randomly placed on the table. Instead, they are listed in order of their atomic number.
The Periodic Table of Elements is arranged so that elements in groups have similar properties, such as their number of valence electrons. Find out how to use the table to determine the valence electrons of elements.
Periodic Table: History
As more and more elements were discovered, chemists saw similarities in them.They noticed that groups of elements had similar properties. Over time, scientists searched for ways to organize elements and many different systems were used. In 1869 the Russian scientist Dmitri Mendeleev (1834-1907) developed a system that the modern periodic table arrangement is based on.
Can diamonds really burn? If so, at what temperature? What is combustion?
What is needed for combustion?
Carbon Dating With Carbon-14
How are fossils dated using carbon-14? What is Half-Life?
How is carbon-14 formed? How does C-14 become part of living organisms? What is radioactive decay? What are Cosmic Rays?
What are cosmic rays? How are they formed? Are they dangerous?