Question

what has the greatest atomic radius? f ne ca k what has the greatest ionic radius? f ne ca k what has the greatest ionization energy? f ne ca k what has the greatest electronegativity? f ne ca k

Explanation:

1. Atomic Radius: Atomic radius increases down a group and decreases across a period. K (Potassium) is in Group 1 and Period 4, Ca (Calcium) is in Group 2 and Period 4, Ne (Neon) is a noble - gas in Period 2, and F (Fluorine) is in Group 17 and Period 2. Since K is the furthest down and to the left among these elements, it has the largest atomic radius.
2. Ionic Radius: For these elements, considering their common ions. F forms F⁻, Ne is a noble - gas and doesn't form a common ion easily, Ca forms Ca²⁺, and K forms K⁺. Cations are smaller than their parent atoms and anions are larger than their parent atoms. Among these, F⁻ has a relatively large ionic radius compared to the cations of Ca and K, and since Ne doesn't have a common ion for this comparison, F has the largest ionic radius among the options in a relevant sense.
3. Ionization Energy: Ionization energy generally increases across a period and decreases down a group. Ne is a noble - gas with a stable electron configuration, and it has a high ionization energy. F is also highly electronegative and has a high ionization energy, but Ne's stable octet makes it have the greatest ionization energy among these elements.
4. Electronegativity: Electronegativity increases across a period and decreases down a group. F is the most electronegative element on the periodic table, so it has the greatest electronegativity among these elements.

Answer:

1. What has the greatest Atomic Radius?

• D. K

1. What has the greatest Ionic Radius?

• A. F

1. What has the greatest Ionization Energy?

• B. Ne

1. What has the greatest Electronegativity?

• A. F