Based on Table S, which general trend is observed as the elements in Group 17 are considered in order of increasing atomic number from fluorine to iodine?

Regents Chemistry Exam August 2024 Question 32

32 Based on Table S, which general trend is observed as the elements in Group 17 are considered in order of increasing atomic number from fluorine

to iodine?

(1) increase in first ionization energy

(2) increase in boiling point

(3) decrease in melting point

(4) decrease in density

Solution:

Table S on the Reference Table lists all of the elements with their densities, first ionization energies, melting points, and atomic radii. Group 17 on the Periodic Table has the following elements: F, Cl, Br, I.... You can look up the properties of the elements in Table S to notice the correct trends. Choice 2 is the correct answer.

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