Question 27

The subatomic particle that is sometimes shared when atoms bond is an electron.

Electrons are the negatively charged subatomic particles that are often involved in the formation of chemical bonds between atoms. When atoms bond, they can share electrons to achieve greater stability, particularly in covalent bonding.

A) Element

An element is a pure substance made up of only one type of atom and does not refer to a subatomic particle. While elements consist of atoms, they are not the particles that are shared during atomic bonding.

B) Orbital

An orbital refers to the region in an atom where there is a high probability of finding electrons. While orbitals are essential in describing how electrons are arranged around an atom, they are not the subatomic particles themselves and do not directly represent the sharing that occurs during bonding.

C) Electron

Electrons are the correct answer as they are the subatomic particles that can be shared between atoms when they form covalent bonds. This sharing of electrons allows atoms to achieve full outer electron shells, leading to greater stability.

D) Ion

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge. Ions may form during certain types of bonding, such as ionic bonding, but they do not represent the particles that are shared in the same way that electrons are in covalent bonding.

Conclusion

Electrons are the fundamental subatomic particles that facilitate the sharing process during atomic bonding, particularly in covalent bonds. Other options, such as elements, orbitals, and ions, do not accurately describe the particles being shared in bonding situations. Thus, the identification of electrons as the shared particles is essential for understanding chemical bonding.