A) oppositely charged ions are held together by strong electrical attractions - ionic bond
B) atoms of metals form bonds to atoms of nonmetals - coordinate covalent bond
C) atoms of different metals form bonds - metallic bond
D) atoms are held together by sharing electrons - covalent bond
E) atoms of noble gases are held together by attractions between oppositely charged ions - noble gases are mostly chemically inert and they only interact by small physical attractions like Van der Waals interactions.
Considering the definition of covalent bonding, the correct answer is option D): In a molecule with covalent bonding, atoms are held together by sharing electrons.
The covalent bond is the chemical bond between atoms where electrons are shared, forming a molecule.
The covalent bond is established between non-metallic elements, since they have many electrons in their outermost level (valence electrons) and tend to gain electrons to acquire the stability of the electronic structure of the noble gas and thus fulfill the octet rule.
The shared pair of electrons is common to the two atoms and holds them together.
Finally, the correct answer is option D): In a molecule with covalent bonding, atoms are held together by sharing electrons.
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