Question

using the data on the periodic table provided, which of the following statements is true? a. the number of valence electrons increase going from left to right because more electrons are added on the outermost energy level. b. all of the transition metals are solids because they have more in common with metals than they do with nonmetals. c. the noble gases are found on the right side of the periodic table because that is where metals are found. d. all metals form negative ions because they give up electrons to form bonds in compounds.

Explanation:

As we move across a period from left - right in the periodic table, electrons are added to the same outer - most energy level, increasing the number of valence electrons. Option B is incorrect as the state of transition metals being solids is due to metallic bonding, not just similarity to metals. Option C is wrong since noble gases are on the right side but they are non - metals. Option D is incorrect because metals form positive ions by giving up electrons.

Answer:

A. The number of valence electrons increase going from left to right because more electrons are added on the outermost energy level.