Question

directions: an unknown element from group 1 reacts with an element from group 17. what is the most likely result of this reaction? periodic table image a covalent bond is formed because the atoms share electrons. an ionic bond is formed because the metal loses an electron to the nonmetal. a mixture is formed because the atoms are not chemically combined. no bond is formed because group 1 elements are already stable.

Explanation:

Group 1 elements are alkali metals (metals) with 1 valence electron, which they readily lose to achieve stability. Group 17 elements are halogens (nonmetals) with 7 valence electrons, needing 1 more to reach a full outer shell. When they react, the metal transfers an electron to the nonmetal, creating oppositely charged ions that attract to form an ionic bond. Covalent bonds form between nonmetals sharing electrons, a mixture involves no chemical combination, and Group 1 elements are not stable on their own as they have an incomplete valence shell.

Answer:

B. An ionic bond is formed because the metal loses an electron to the nonmetal.