Concept:Metals are held together by metallic bonding, not by covalent bonds or electron acceptance.
Explanation:Metal atoms readily lose electrons, not accept them.
They form positively charged ions surrounded by a mobile sea of delocalised electrons.
This "sea of electrons" acts as a glue holding the metal ions together.
This also explains why metals conduct electricity well.
Metals are generally hard and not described as soft in this context.
Therefore, the correct statement is about the sea of electron cloud.
Answer:D. are held together by a sea of electron cloud.