Interpretation:
The formulas for the compounds formed from the given elements that lies on the left and each polyatomic ion that lies on the right are to be written.
Concept introduction:
Metals lie in the left side of the periodic table. Non-metals lie in the right side of the periodic table.
The compounds comprises of positive ions (formed by metals) and negative ions (formed by nonmetals) are called ionic compounds.
Polyatomic ions are composed of a group of atoms having an overall charge.
Following steps to write the formula for the ionic compound
Write the symbol and charge of metal follow by symbol and charge of nonmetal. Charges are determined from the group number in periodic table.
Use magnitude of the charge on each ion as the subscript for other ion.
Reduce subscripts to simpler whole number possible.
Check that sum of the charges of positive ion exactly cancel the sum of the charges of the negative ions.
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Introductory Chemistry (5th Edition) (Standalone Book)
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- 1-How many total shared electrons are there in the Lewis structure of CS2? a.10 b.6 c.2 d.8 e.4 2-In which bond does the Cl atom have the highest electron density, i.e. it attracts the electrons in the covalent bonds the most? a.N—Cl b.H—Cl c.O—Cl d.S—Cl e.Br—Clarrow_forwarda. What is the charge on ions formed from the alkaline earth metals? b.What is the charge on ions formed by the alkaline earth metals? c.What is the charge on ions formed by the halogens? d.Identify three elements that can only form one cation? e.Identify three elements that can only form one anion f.Identify three elements that can form more than one cation g.In what region of the Periodic Table can an element form more than one cation? h.Are there any elements in this region that only form one cation?i.How do you determine the charge on the main group elements?arrow_forward19) Select the pair of atoms which can form ionic bond between them. a. Ca and N b. O and N c. Ca and Mg d. Ca and Karrow_forward
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