Li, Na, Rb
Rank from highest to lowest electronegativity
From highest to lowest electronegativity:
1) Fluorine (F)
2) Oxygen (O)
3) Chlorine (Cl)
4) Sulfur (S)
5) Nitrogen (N)
6) Carbon (C)
7) Hydrogen (H)
8) Potassium (K)
To rank Li, Na, and Rb from highest to lowest electronegativity, we need to compare their positions in the periodic table. Electronegativity generally increases from left to right across a period and decreases from top to bottom within a group.
1. Rb (Rubidium): Rb is located at the bottom left of the periodic table, indicating the lowest electronegativity among the three elements.
2. Na (Sodium): Na is located to the left of Rb but still in the same period. It has a slightly higher electronegativity than Rb.
3. Li (Lithium): Li is located to the left of Na. It has the highest electronegativity among the three elements.
Therefore, the ranking from highest to lowest electronegativity is Li > Na > Rb.
To rank Li, Na, and Rb from highest to lowest electronegativity, you need to know the periodic trends of electronegativity. Electronegativity is the measure of an atom's ability to attract the shared electrons in a chemical bond.
The electronegativity generally increases as you move across a period from left to right in the periodic table. It also increases as you move up a group in the periodic table.
Li (Lithium) is the first element in Group 1 of the periodic table. Na (Sodium) is the second element in Group 1, and Rb (Rubidium) is the fifth element in Group 1.
Since all three elements are in the same group (Group 1), their electronegativity follows the trend as you move down the group: it decreases.
Therefore, the ranking from highest to lowest electronegativity among Li, Na, and Rb is as follows:
Rb > Na > Li
Rubidium (Rb) has the highest electronegativity, Sodium (Na) has intermediate electronegativity, and Lithium (Li) has the lowest electronegativity.