printable periodic table of elements prentice hall

If the anion is an element, change its ending to -ide if the anion is a polyatomic ion, simply write the name of the polyatomic ion.Molecules, and Ions © 2009, Prentice-Hall, Inc. – If these subscripts are not in the lowest wholenumber ratio, divide them by the greatest common Atoms, factor. – The charge on the anion becomes the subscript on the cation. Because compounds are electrically neutral, one can determine the formula of a compound this way: – The charge on the cation becomes the subscript on the anion.Ionic Bonds Ionic compounds (such as NaCl) are generally formed between metals and nonmetals. – Anions are negative and are formed by elements Atoms, Molecules, on the right side of the periodic chart. – Cations are positive and are formed by elements on the left side of the periodic chart. When atoms lose or gain electrons, they become ions.Perspective drawings also show the three-dimensional array of atoms in a compound.Structural formulas show the order in which atoms are bonded.Molecular formulas give the exact number of atoms of each element in a compound.Empirical formulas give the lowest whole-number ratio of atoms of each element in a compound.These seven elements occur naturally as molecules containing two atoms. Periodic Table Metals are on the left side of the chart.Ĭhemical Formulas The subscript to the right of the symbol of an element tells the number of atoms of that element in one molecule of the compound.Ĭhemical Formulas Molecular compounds are composed of molecules and almost always contain only nonmetals. Periodic Table Metalloids border the stair-step line (with the exception of Al, Po, and At). Periodic Table Nonmetals are on the right side of the periodic table (with the exception of H). These five groups are known by their names. Elements in the same group have similar chemical properties.Ītoms, Molecules, and Ions © 2009, Prentice-Hall, Inc.The rows on the periodic chart are periods.

Printable periodic table of elements prentice hall