Melting point is defined as the temperature at which the bond within a solid collapse and the solid is converted into a liquid. As the atomic number of elements increases, the melting point increases because there are more electrons around the nucleus, which creates a stronger negatively-charged force.

The Periodic Table can predict the properties of new elements, because it organizes the elements according to their atomic numbers. They hope that the two nuclei at the centre of these atoms will fuse and form a heavier nucleus. When these heavy elements form, they are usually highly unstable.

The chemical properties of an element, are determined by the number of protons in the nucleus. This number of protons is called the atomic number. The mass of the atom, its atomic mass, depends upon the sum of the number of protons and the number of neutrons present in the nucleus.

The valence shell electrons in an atom determine the way it will interact with neighboring atoms, and therefore determine its chemical properties. Since both sodium and lithium have one valence electron, they share similar chemical properties. the electron shell closest to the nucleus of the atom.

To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.

There are nine basic groups of elements shown in the periodic table. They are the alkali metals, alkaline earth metals, transition metals, other metals, metalloids, non-metals, halogens, noble gases and rare earth elements.

The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.

Scientists believe that about 25 of the known elements are essential to life. The other elements found can be divided into two main groups – major elements and trace elements. The human body functions as a result of a large number of chemical reactions involving compounds of all of these elements.

Carbon

The most important structural element, and the reason we are known as carbon-based life forms. About 12 per cent of your body’s atoms are carbon. The hydrogen atoms in your body were formed in the Big Bang.

1. Note that most living matter consists primarily of the so-called bulk elements: oxygen, carbon, hydrogen, nitrogen, and sulfur—the building blocks of the compounds that constitute our organs and muscles. These five elements also constitute the bulk of our diet; tens of grams per day are required for humans.

The two essential elements that affect life are carbon and oxygen. Most of the carbon is found in the form of carbon dioxide in the atmosphere.

The six most common elements of life on Earth (including more than 97% of the mass of a human body) are carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus.

The four elements of western culture are: EARTH, AIR, FIRE, and WATER. These four elements were believed to be essential to life. Taoism has five elements, each one superior to the next in turn: wood, earth, water, fire, and metal. Metal conquers wood, wood conquers earth, et cetera.

The basic substances of the material world according to the ‘Theory of the Five Elements’ are Wood, Fire, Earth, Metal and Water. All material things are made of a single or a combination of the Five Elements, since these are the fundamental components.

The fifth element on top of earth, air, fire, and water, is space or aether. It was hard for people to believe that the stars and everything else in space were made of the other elements, so space was considered as a fifth element.

Whole Universe is made up of 5 elements: Earth, Water, Fire, Air and Space. Human body is also made of 5 elements: Earth element (Bones and Muscles), Water element (Blood), Air element (Breath), Fire element (Heat), and Space element (Emptiness within). …

The human body, just like the entire universe, is made up of the five elements earth, water, fire, air and space. The principle element in the order from gross to subtler is earth.

The word “Pancha Tattva” literally means five elements of life (‘Pancha’ meaning five and ‘Tattvas’ in meaning elements in Sanskrit)….These elements of tattvas are:

• Akash (Sky or Space)
• Vayu (Air)
• Jal (Water)
• Agni (Fire)
• Prithvi (Earth)

Chinese philosophy recognizes five distinct elements of cyclical change called water, wood, fire, earth, and metal.

The elements: Fire, Water, Earth, Air, Nature, Ice, Light, Darkness.

For the weakest element, I would probably go for helium – one of the noble gases. It is very light and unreactive.

While other toxic metals such as mercury and arsenic kill through the interaction of the metal with the body, polonium kills by emitting radiation which shreds sensitive biomolecules, such as DNA, and kills cells.

Chemistry : List of Periodic Table Elements Sorted by: Atomic number

tungsten

Atomic Mass of First 30 Elements

Terms in this set (10)

• Hydrogen. H.
• Helium. He.
• Lithium. Li.
• Beryllium. Be.
• Boron. B.
• Carbon. C.
• Nitrogen. N.
• Oxygen. O.