Chalcogens are elements of group
Correct answer: C. 16
- A. 14
- B. 15
- C. 16
- D. 13
Explanation
The elements known as chalcogens are found in Group 16 of the periodic table. This group includes oxygen, sulfur, selenium, tellurium, and polonium. These elements are characterized by having six electrons in their outermost shell, which impacts their chemical properties. The other options provided correspond to different groups: Group 13 (boron group), Group 14 (carbon group), and Group 15 (pnictogens), none of which are classified as chalcogens.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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