Question

metallic character increases/decreases
metals nonmetals ar increase ie decrease ar decrease ie increase
a. move the label to the approximate areas of metals and the nonmetals.
b. for the vertical arrow, move the correct label for atomic radius (ar). ionization energy (ie).
c. repeat the instructions in b for the horizontal arrow.
d. for the diagonal arrow, indicate whether metallic character increases or decreases by deleting one option.

Explanation:

Step1: Labeling Metals and Non - metals

Metals are located on the left - hand side of the periodic table. So, the "Metals" label should be moved to the left - hand side area. Non - metals are on the right - hand side, so the "Nonmetals" label should be moved to the right - hand side area.

Step2: Vertical Arrow (Atomic Radius and Ionization Energy)

As we move down a group (vertical direction in the periodic table), the atomic radius (AR) increases. This is because there are more electron shells. Ionization energy (IE) decreases as we move down a group. The outermost electrons are farther from the nucleus and are easier to remove. So, the vertical arrow should have the label "AR increase, IE decrease".

Step3: Horizontal Arrow (Atomic Radius and Ionization Energy)

As we move across a period (horizontal direction from left to right), the atomic radius (AR) decreases. This is due to increased nuclear charge attracting the electrons more strongly. Ionization energy (IE) increases as we move across a period because it is more difficult to remove an electron from a more tightly bound electron cloud. So, the horizontal arrow should have the label "AR decrease, IE increase".

Step4: Diagonal Arrow (Metallic Character)

As we move down and to the left (diagonal direction in the way described by the arrow in the periodic table - like from top - right to bottom - left), metallic character increases. Metals tend to lose electrons easily, and as we go down a group (more electron shells, less hold on outer electrons) and to the left (fewer valence electrons to hold on to), the tendency to lose electrons (metallic character) increases. So, for the diagonal arrow, we delete "decreases" and keep "increases".

Answer:

A. Metals - left - hand side; Nonmetals - right - hand side.
B. Vertical arrow: AR increase, IE decrease.
C. Horizontal arrow: AR decrease, IE increase.
D. Diagonal arrow: Metallic character increases.