The element with the greatest number of valence electrons available for bonding is chlorine. Among all the choices, chlorine is the element that belongs to the higher group number, group 7. Selenium is from group 6. Boron is from group 5, while calcium is from 2. Since the group number also equates to the number of valence electrons, chlorine is the answer.
Answer:
Hughes is a corresponding increase
Gas particles spread out to fill a container evenly, unlike solids and liquids. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container.
