Elements and Compounds Quiz

There are 118 115 122( 118, 115, 122 ) known elements. They are displayed in a table called the periodic chemical element( periodic, chemical, element ) table. The elements are listed from lightest oldest newest heaviest( lightest, oldest, newest, heaviest ) to heaviest newest oldest lightest( heaviest, newest, oldest, lightest ) and according to their properties abundance name( properties, abundance, name )

The symbols of elements follow different Identical( different, Identical ) patterns. For some elements, the symbol is the first letter of its name. These elements include oxygen chlorine sodium( oxygen, chlorine, sodium ) and neon nitrogen niobium( neon, nitrogen, niobium ). For some elements, the symbol is two letters derived from the beginning or part of its name. The first letter is always upper case lower case( upper case, lower case ) and the second letter is always lower case upper case( lower case, upper case ). These elements include magnesium sodium phosphorus( magnesium, sodium, phosphorus ) and chlorine flourine carbon( chlorine, flourine, carbon ). For other elements, the symbol comes from the name of the element in another language. These elements include sodium helium rubidium( sodium, helium, rubidium ) and tungsten hydrogen cadmium( tungsten, hydrogen, cadmium ).

If a substance contains only one type of atom, it is a compund an element a molecule( a compund, an element, a molecule )

If a substance contains more than one type of atom, it may be a compound or an element a mixture( an element, a mixture )

If a substance contains clusters of different types of atoms, it is an elemental compound a lattice compound a molecular compound( an elemental compound, a lattice compound, a molecular compound )

If a substance contains atoms very strongly bonded to each other and in a regular arrangement, it is a compound lattice molecular compound( compound lattice, molecular compound )

If a substance contains more than one element or compound, it is a compound lattice mixture( compound, lattice, mixture )

An alloy is an example of a mixture an element a compund( a mixture, an element, a compund )