I. H low do you know when to name something as an ionic compound? 2. How do you know when to name something as a molecular compound? 3. How does nami ing an ionic compound differ from naming a molecular compound? 4. How do you know when a polyatomic ion is present? 5. Why do we include a Roman numeral in the name for compounds containing a transition metal and not for main group metals?
Solution
1. When we see that a metal (cation) is bonded to a non-metal (anion) we detect it to an ionic compound and name it so.
2. When two elements of comparable electronegativity combine to form a molecule it then becomes a covalent compound.
3. In naming ionic compounds we generally name the cation and anion separately. Molecular compounds either have trivial names or are named according to IUPAC rules.
4. Polyatomic ions are placed in brackets and so we can detect them.
5. Transition metals can have more than one oxidation states which normal metals dont. So, the roman numerals are included to indicate oxidation states of the transition metals.
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I- H low do you know when to name something as an ionic compound- 2- H.docx
1. I. H low do you know when to name something as an ionic compound? 2. How do you know
when to name something as a molecular compound? 3. How does nami ing an ionic compound
differ from naming a molecular compound? 4. How do you know when a polyatomic ion is
present? 5. Why do we include a Roman numeral in the name for compounds containing a
transition metal and not for main group metals?
Solution
1. When we see that a metal (cation) is bonded to a non-metal (anion) we detect it to an ionic
compound and name it so.
2. When two elements of comparable electronegativity combine to form a molecule it then
becomes a covalent compound.
3. In naming ionic compounds we generally name the cation and anion separately. Molecular
compounds either have trivial names or are named according to IUPAC rules.
4. Polyatomic ions are placed in brackets and so we can detect them.
5. Transition metals can have more than one oxidation states which normal metals dont. So, the
roman numerals are included to indicate oxidation states of the transition metals.
