prep 2 , lesson 2 , electro negativity

What is the electronegativity ?

• It is the ability of the atom in a covalent molecule to attract the electrons of the chemical bond towards itself.

• If the difference in electronegativity between elements

..............It is a covalent compound, in which the difference in electronegativity between its elements is relatively high ?

• Metals

• Polar compounds

• Non polar compounds

• It consists of combination of one oxygen atom with two hydrogen atoms.

• Ammonia molecule

• Water molecule

Ammonia molecule is consist of ............

• one nitrogen atom with three hydrogen

• one oxygen atom with two hydrogen

. Water molecule is a polar compound, because the difference in electronegativity between its elements is relatively low

• True

• false