SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Covalent bonds form between two metals.
|
|
|
Ionic bonds form between two metals.
|
|
|
Covalent bonds form between a metal and a non-metal.
|
|
|
Ionic bonds form between a metal and a non-metal.
|
Detailed explanation-1: -One way to predict the type of bond that forms between two elements is to consider whether each element is a metal or nonmetal. In general, covalent bonds form between nonmetals, ionic bonds form between metals and nonmetals, and metallic bonds form between metals.
Detailed explanation-2: -Ionic bonds require at least one electron donor and one electron acceptor. In contrast, atoms with the same electronegativity share electrons in covalent bonds, because neither atom preferentially attracts or repels the shared electrons.
Detailed explanation-3: -Ionic bonds are formed when two atoms exchange electrons to create a positive and negative ion. Covalent bonds are formed when atoms share electrons to create a molecule. Metallic bonds are created when metal atoms lose their outermost electron to form positively charged ions.
Detailed explanation-4: -Name the metal by its elemental name. Name the nonmetal by its elemental name and an-ide ending. Name metals that can have different oxidation states using roman numerals to indicate positive charge. Example Fe2+ is Iron(II) Name polyatomic ions by their names.