I'm not sure about this: Rank from most to least valence electrons- Xe, In, I, Sb, Rb
Thanks
-MC
To determine the rank of the elements from most to least valence electrons, we need to know the electron configuration of each element. The valence electrons are the electrons in the outermost energy level (also known as the valence shell) of an atom.
Let's start by determining the electron configuration of each element:
- Xenon (Xe): The atomic number of xenon is 54. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶. Since it is in group 18 of the periodic table, it has 8 valence electrons.
- Indium (In): The atomic number of indium is 49. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p¹. Since it is in group 13, it has 3 valence electrons.
- Iodine (I): The atomic number of iodine is 53. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵. Since it is in group 17, it has 7 valence electrons.
- Antimony (Sb): The atomic number of antimony is 51. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p³. Since it is in group 15, it has 5 valence electrons.
- Rubidium (Rb): The atomic number of rubidium is 37. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s². Since it is in group 1, it has 1 valence electron.
Now, let's rank the elements based on the number of valence electrons:
Most valence electrons:
1. Xenon (Xe) - 8 valence electrons
2. Iodine (I) - 7 valence electrons
3. Antimony (Sb) - 5 valence electrons
4. Indium (In) - 3 valence electrons
5. Rubidium (Rb) - 1 valence electron
Least valence electrons.
Therefore, the elements ranked from most to least valence electrons are: Xe, I, Sb, In, Rb.
To rank the elements from most to least valence electrons, we need to look at their electron configuration.
Valence electrons are the electrons in the outermost energy level of the atom.
Let's determine the number of valence electrons for each element:
- Xenon (Xe): Located in Group 18 (noble gases) of the periodic table, Xenon has 8 valence electrons.
- Indium (In): Located in Group 13, Indium has 3 valence electrons.
- Iodine (I): Located in Group 17, Iodine has 7 valence electrons.
- Antimony (Sb): Located in Group 15, Antimony has 5 valence electrons.
- Rubidium (Rb): Located in Group 1, Rubidium has 1 valence electron.
Now, let's rank the elements from most to least valence electrons:
1. Xenon (Xe) - 8 valence electrons
2. Iodine (I) - 7 valence electrons
3. Antimony (Sb) - 5 valence electrons
4. Indium (In) - 3 valence electrons
5. Rubidium (Rb) - 1 valence electron
So, the ranking from most to least valence electrons is Xe > I > Sb > In > Rb.