Group 1 elements are called ________________________ and will react with Group 17 elements, which are called __________________ to create _____________.

Group 1 elements are called alkali metals and will react with Group 17 elements, which are called halogens, to create ionic compounds.

When alkali metals, such as sodium (Na) or potassium (K), react with halogens, such as chlorine (Cl) or bromine (Br), they tend to lose one electron to form cations, while halogens tend to gain an electron to form anions. This electron transfer results in the formation of ionic bonds, leading to the production of salts, such as sodium chloride (NaCl) or potassium bromide (KBr). These compounds typically exhibit high melting points and are soluble in water, showcasing the characteristic properties of ionic compounds.