Elements for Kids Nonmetals The nonmetals are a group of elements in the periodic table. They are located to the right of the metalloids and to the left of the halogens.
The properties of form, appearance, and behaviour when mixed with metals are more like metals. Elasticity and general chemical behaviour are more like nonmetals.
Electrical conductivity, band structure, ionization energy, electronegativity, and oxides are intermediate between the two. Common applications[ edit ] The focus of this section is on the recognised metalloids. Elements less often recognised as metalloids are ordinarily classified as either metals or nonmetals; some of these are included here for comparative purposes.
Metalloids are too brittle to have any structural uses in their pure forms. Also shown are two silver pellets. Writing early in the history of intermetallic compoundsthe British metallurgist Cecil Desch observed that "certain non-metallic elements are capable of forming compounds of distinctly metallic character with metals, and these elements may therefore enter into the composition of alloys".
He associated silicon, arsenic, and tellurium, in particular, with the alloy-forming elements. Among the lighter metalloids, alloys with transition metals are well-represented. Alloys of silicon with iron and with aluminium are widely used by the steel and automotive industries, respectively.
Germanium forms many alloys, most importantly with the coinage metals. Arsenic can form alloys with metals, including platinum and copper ;  it is also added to copper and its alloys to improve corrosion resistance  and appears to confer the same benefit when added to magnesium.
The antileukaemic properties of white arsenic were first reported in Boron, silicon, arsenic, and antimony have medical applications, and germanium and tellurium are thought to have potential. Boron is used in insecticides  and herbicides.
Silicon is an essential trace element.
Inarsenic trioxide under the trade name Trisenox was re-introduced for the treatment of acute promyelocytic leukaemiaa cancer of the blood and bone marrow. Phosphorus, sulfur, zinc, selenium, and iodine are essential nutrients, and aluminium, tin, and lead may be.
Sulfur is a constituent of sulfonamide drugsstill widely used for conditions such as acne and urinary tract infections. Bismuth is an ingredient in some antibacterials.Then the next most abundant elements are Iron %, Calcium %, Sodium %, Potassium %, Magnesium %, Hydrogen %, titanium %, Chlorine %, Phosphorus Manganese and Carbon are all %, Sulfur % Barium %, Nitrogen % and the rest of the elements on the periodic table take up about %.
Unfortunately lead can build up in the human body and cause serious health issues. Just ask the Mad Hatter. To the right of the metalloid staircase is a whole new brand of elements the non-metals. The other nonmetals are some of the most abundant elements in the universe including the Earth's crust, the atmosphere, and the human body.
What elements are nonmetals?
The elements that are generally considered other nonmetals include hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur, and selenium. The average 70 kg ( lb) adult human body contains approximately 7 × 10 27 atoms and contains at least detectable traces of 60 chemical elements.
About 29 of these elements are thought to play an active positive role in life and health in humans. Metalloid: An element that acts sometimes like a metal and sometimes like a nonmetal.
Nonmetal: An element that tends to gain electrons in chemical reactions with other elements. Periodic table: A system of classifying the chemical elements according to their atomic number. When Mendeleev organized elements in his periodic table in order of increasing mass elements with similar properties were in the same: Metalloids Elements can be classified as metals, nonmetals, and.