The Period Table Lol This Site Is Fail and Rip Off Boooooooooooooo Never Buy U Have to Submit a Frikin Essay Lol Fail

You are probably wondering what this table of colourful boxes is? Well you’ve come to the right place, I hope.
What is it?
Well everything in the world is made up of elements, well almost everything, light, heat, this is energy, another story. And elements are a single type of atom, the periodic table is basically a table of all know elements to man.
What’s in it?
To understand what’s in it we need to look at an atom and it subatomic parts. An atom is made up of an Electron(e-) this has a negative charge, Proton(p+) this has a positive charge and a Neutron(n) this is neutral. The C is the element symbol in this case Carbon. The 12 is the Atomic number, this is the number of protons and neutrons. The 6 is the Atomic mass, this is the number of protons which is also the number electrons. So 12-6=6 the number of neutrons.
Periods and Groups
The periodic table is arranged into groups and periods. Periods are horizontal (rows) these show the number of electron shells and they go up left to right in Atomic number. So Potassium(K) on period 4 will have 4 electron shells. Groups, these are the columns going across except the transition metals. The group number show the number of electrons on the outer most shell. Group 0 does not apply to this rule because they are the noble gases, they however have the outermost electron shell full. Oxygen (O) will have 6 electrons in its outer shell.
How is the Periodic Table Split?
Non-metals: These are the elements on right side of line, as well as hydrogen, which is, which is in-group 1 because it only has 1 electron on its outer shell. Non-metals cannot conduct electricity except carbon (in the graphite form) because it has 1 electron “free” this allows electricity to conduct in carbon but not as well as metals. So it’s used as a carbon resistor. They also can’t conduct heat well. This is again due to the fact that non-metals don’t have enough “free” electrons to share the thermal energy easily. Non-metals are dull and brittle. They usually have lower densities than, and they have much lower melting and boiling points with the exception of carbon (melting point:3500C boiling point:4827C). Alkali metals: The elements in group 1 are the alkali metals, they have 1 electron in their outer shell.
Li-Lithium: is a soft, silver-white metal, under normal conditions it is the lightest and the least dense solid, highly reactive and flammable and never found naturally in nature, only in compounds. Used in batteries and in alloys. Na-Sodium: soft silvery metal soft, easily cut with knife. Highly reactive and flammable, can be used a bleaching agent (as like all the alkali metals) and when in a compound with chlorine, forms sodium chloride, table salt.
K-Potassium: Potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water, producing enough heat to ignite the hydrogen emitted in the reaction. All living cells need it for its functions and in soil fertilizers.

Rb-Rubidium: Rubidium is a soft, silvery-white metallic element of the alkali metal group. It is highly reactive, with properties similar to those of other elements in Group 1, very rapid oxidation in air. It is slightly radioactive. Rubidium compounds are sometimes used in fireworks to give them a purple colour and they are used in atomic clocks.
Cs- Caesium: It is a soft, silvery-gold alkali metal highly reactive with water. Two German chemists, Robert Bunsen and Gustav Kirchhoff, discovered caesium in 1860. It is used in a few medical uses and in atomic clocks.
Fr-Francium: The unknown element (sort of and the element that we can’t use in school ). It is thought to be highly reflective metal, however it is highly radioactive. Only 20-30g at a single time in the earth’s crust.
Alkali metals tarnish(oxidize) in air so they are stored in oil/inert gases. They increase in reactivity as you go down the group.
Transition Elements: the elements here are metal. Between, group 2 and 3. * they form coloured compounds * they are good conductors of heat and electricity * they can be hammered or bent into shape easily * they are less reactive than alkali metals such as sodium * they have high melting points - but mercury is a liquid at room temperature * they are usually hard and tough * they have high densities

Halogens: Are all highly reactive and are harmful to biological organisms(living stuff e.g. humans).Their high reactivity is due to the atoms being highly electronegative, this is where force between the nucleus and the electrons are so strong that when they react with another element it “steals” an electron and the then it becomes very very inert(non-reactive). It is the only group to have all 3 states (solid, liquid and gas) at normal temperature and pressure. The further up the group you go the more reactive the element and the lower you go the darker the appearance of the element.

F-Fluorine: pale yellow, very reactive. (gas at room temp) and F- is fluoride the stuff in toothpaste in small amounts.
Cl-Chlorine: yellow/green poisonous was used in WW1 gas attacks and in swimming pools.
Br-Bromine: red/brown liquid, metallic when solid (Liquid a t room temp highly volatile) used to make furniture flame retardant.
I-Iodine: metallic, violet in gas.(solid at room temp) used as disinfectant for water.
At-Astatine: Unknown thought to be black solid.

Noble gases: do they wear a crown I hear you ask? No they are called this because they are very inert and in olden days the noble/important people didn’t mix with others, this is exactly what noble gases do. They don’t react with other elements because they have a full outer shell (this is the most stable point in an atom). All are gas at room temperature.
He-Helium: It is a colourless, odourless, tasteless, non-toxic (although breathing it is not advisable) inert. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions.
Ne-Neon- It is a colourless, odourless used in neon lights, with different coatings on the inside of the light tube you can show many colours.
Ar-Argon: approximately as soluble in water as oxygen. colourless, odourless, tasteless, non-toxic. Used to store alkali metals with because they are inert. And used in blubs because it is inert and stops the filament from burning up.
Kr-Krypton: is a colourless, odourless, tasteless, can be used in lighting and photography.
Xe-Xenon: is a colourless, odourless, tasteless and heavy(by gas standards) used in flash lamps, arc lamps (bright light li ke the sun used in theatre projectors and spotlights).
Rn-Radon: colourless but it is radioactive, has been used a cancer treatment but it cause a few complications.
The photos of the noble gases you see are when a high voltage current passes through them.

The History of the Periodic table
The first periodic table was made by Dmitri Mendeleev. (8 February 1834 – 2 February 1907)
Considering this was 25 years before the discovery of the electron he made some astonishingly good guesses on some elements he will estimated their properties. He put the element that were known then in atomic mass order groups and periods, he then saw holes in the table and this is where he made his great guesses. Although he didn’t get a noble prize although he got even more prestige by having a synthetic radioactive element named after him, Md-Mendelevium.
Antoine-Laurent de Lavoisier(1789)created a textbook called “Elementary Treatise of Chemistry” this contained a few elements and described them as metal/non metal.
Johann Wolfgang Döbereiner
In 1817, Johann Wolfgang Döbereiner began to attempt to classify the elements. In 1828 he found that some elements formed groups of three with related properties. Called these groups "triads". Some triads are: chlorine, bromine, and iodine calcium, strontium, and barium sulfur, selenium, and tellurium lithium, sodium, and potassium
In all of the triads, the atomic mass of the second element was almost exactly the average of the atomic weights of the first and third elements.
From 1800 to present day people discovered more elements and they arranged them accordingly to Dmitri Mendeleev’s periodic table.
Thanks to Mr. Dmitri Ivanovich Mendeleev
We can do this Project.