[DOC] [TLE] alkali metal | chemical element | Britannica.com [PAR] Alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the 
periodic ... The alkali metals are so reactive that they are generally found in 
nature combined with other elements. Simple ... Lithium is the lightest metallic 
element. ... The alkali metals react readily with atmospheric oxygen and water 
vapour. [DOC] [TLE] Aluminum, Chemical Element - reaction, water, uses, elements ... [PAR] The periodic table is a chart that shows how the chemical elements are related to 
... Alum is a compound of potassium, aluminum, sulfur, and oxygen. ... An 
astringent is a chemical that causes skin to pull together. ... In this reaction, 
Oersted produced an aluminum amalgamaluminum metal in combination with 
mercury. [DOC] [TLE] Matter, Elements, Molecules, and Compounds - edHelper.com [PAR] challenging words: lightest, nucleus, compounds, atom, hydrogen, element, 
substance, molecule, ... Matter is the stuff that makes up everything in the 
universe. ... When two hydrogen atoms combine with one oxygen atom, it 
becomes the compound water. ... These abbreviations for elements are called 
chemical symbols. [DOC] [TLE] Chemical element - Wikipedia [PAR] A chemical element or element is a species of atoms having the same number of 
protons in ... Iron is the most abundant element (by mass) making up Earth, while 
oxygen is ... The lightest chemical elements are hydrogen and helium, both 
created by ..... For example, the formula for heavy water may be written D2O 
instead of... [DOC] [TLE] Atoms and Elements | Parts and Properties of an Atom | Compounds ... [PAR] For example, water has two atoms of hydrogen and one atom of oxygen. ... the 
heaviest atoms , about 200 times heavier than hydrogen , which is the lightest 
element. .... Nitrogen's chemical symbol is N. Its atomic number is 7 and its mass 
is 14. .... that combine to form proteins; artist = a person who paints or makes 
drawings... [DOC] [TLE] Chemistry for Biologists: Some basic chemistry [PAR] An element is a substance made up of atoms with the same number of protons. ... 
e.g. reactions with water, oxygen, acids and other chemicals ... all are found 
chemically combined with other elements in compounds. [DOC] [TLE] What elements make up water? | Reference.com [PAR] ... resulting in the chemical formula H2O. Hydrogen and oxygen bond together 
due to the number ... What is the most abundant element in ocean water? What is 
a molecule composed of two hydrogen atoms and one oxygen atom? ... and 
hydrogen atoms combine, and it takes a total of three atoms to make a water 
molecule. [DOC] [TLE] hydrogen facts, information, pictures | Encyclopedia.com articles ... [PAR] Together, these two elements make up 99.9% of all known matter in the entire .... 
Aside from water, another commonly used hydrogen-oxygen compound is 
hydrogen .... Because hydrogen is the lightest known gas and is relatively cheap 
to ... A chemical reaction in which hydrogen atoms are added to carbon multiple 
bonds,... [DOC] [TLE] Chemistry of Hydrogen - Chemistry LibreTexts [PAR] Jul 27, 2015 ... It is also the lightest (in terms of atomic mass) and the simplest, having only one 
... First isolated and identified as an element by Cavendish in 1766, hydrogen ... 
Hydrogen's low ionization energy makes it act like an alkali metal: ... Hydrogen 
gas reacting with oxygen to produce water and a large amount of... [DOC] [TLE] Definition of element - Chemistry Dictionary - Chemicool [PAR] With only one proton, hydrogen is the simplest, lightest element, followed by 
helium, which has ... All of the other elements make up the remaining 1 percent. 
... means that water is made of two atoms of hydrogen combined with one of 
oxygen. [DOC] [TLE] Atomic theory: atoms, elements, nucleus - Chem1 [PAR] May 13, 2016 ... Ten of the chemical elements have been known since ancient times. ..... find the 
relative masses of two atoms X and Y that combine with oxygen only if ... This 
means that if the formula of water is assumed to

Question: When combined with oxygen, this lightest chemical element makes water
Answer: hydrogen