Question

choose the more metallic element from each pair.
match the elements in the left column to the appropriate blanks in the sentences on the right.
n
sn
ge
bi
as
f
rb
between as and bi, the more metallic element is
between rb and sn, the more metallic element is
between f and as, the more metallic element is
between ge and n, the more metallic element is

Explanation:

• Metallic character increases down a group and decreases across a period from left to right in the periodic table.
• For As and Bi: Bi is below As in Group 15. So, Bi is more metallic.
• For Rb and Sn: Rb is in Group 1 (alkali metal) and Sn is in Group 14. Alkali metals are highly metallic. So, Rb is more metallic.
• For F and As: F is a non - metal in Group 17 and As is a metalloid in Group 15. As is more metallic.
• For Ge and N: Ge is a metalloid in Group 14 and N is a non - metal in Group 15. Ge is more metallic.

Answer:

Between As and Bi, the more metallic element is Bi.
Between Rb and Sn, the more metallic element is Rb.
Between F and As, the more metallic element is As.
Between Ge and N, the more metallic element is Ge.