consider this row in the periodic table of elements. as we move from left to right, across the row, the…

consider this row in the periodic table of elements. as we move from left to right, across the row, the elements a change from nonmetals to metals. b change from metals to nonmetals. c start as gases but end as solids. d show a decrease in atomic mass number.

consider this row in the periodic table of elements. as we move from left to right, across the row, the elements a change from nonmetals to metals. b change from metals to nonmetals. c start as gases but end as solids. d show a decrease in atomic mass number.

Answer

Brief Explanations:

Aluminum (Al) is a metal. Silicon (Si) is a metalloid. Phosphorus (P), Sulfur (S), Chlorine (Cl), and Argon (Ar) are non - metals. As we move from left to right across the row in the periodic table, elements change from metals to non - metals. Atomic mass number increases from left to right. Also, aluminum is a solid and argon is a gas, so the state does not follow the pattern described in option C.

Answer:

B. change from metals to nonmetals.