place in order of increaseing nonmettalic character: Se, Po,and O. Can you explain how to do this?
To determine the order of increasing nonmetallic character for the elements Se, Po, and O, you can consider their positions on the periodic table and their periodic trends.
1. Locate the elements on the periodic table:
- Se (Selenium) is found in Group 16, Period 4.
- Po (Polonium) is found in Group 16, Period 6.
- O (Oxygen) is found in Group 16, Period 2.
2. Consider the periodic trend of nonmetallic character:
Nonmetallic character generally increases from left to right across a period and decreases down a group.
3. Comparing Se and O:
Both Se and O are located in the same group (Group 16) but on different periods. Since Se is to the right of O on the periodic table, Se has a higher nonmetallic character than O.
4. Comparing Se and Po:
Se and Po are both in Group 16, but Po is located further down (in a higher period). As nonmetallic character decreases down a group, Po has a lower nonmetallic character than Se.
5. Final order of increasing nonmetallic character:
Arranging the elements in order of increasing nonmetallic character, we have: O < Se < Po.
Therefore, the correct order of increasing nonmetallic character is: Oxygen (O) < Selenium (Se) < Polonium (Po).