Question

1. which of the following best describes a covalent bond?

a bond formed by the transfer of electrons between a metal and a nonmetal.
a bond formed by the attraction between a positive ion and a negative ion.
a bond formed by the attraction between a positive ion and a sea of delocalized electrons.
a bond formed by the sharing of electrons between two nonmetals.
clear all

Explanation:

To determine the correct description of a covalent bond, we analyze each option:

• The first option describes ionic bonding (electron transfer between metal and nonmetal).
• The second option also describes ionic bonding (attraction between positive and negative ions).
• The third option describes metallic bonding (attraction between positive ions and delocalized electrons).
• The fourth option correctly describes covalent bonding, where electrons are shared between two nonmetals.

Answer:

D. A bond formed by the sharing of electrons between two nonmetals. (Note: Assuming the options are labeled A, B, C, D in order. If the last option is, say, D, then this is the answer. If the labels differ, adjust the identifier but keep the description.)