Table of Contents
- 1 Which has the largest ionic radius?
- 2 How do you know which element has a larger ionic radius?
- 3 Which of the following elements has the largest atomic radius?
- 4 Which of the following ions is the largest?
- 5 Which element has the largest radius Na or CS?
- 6 Which of the following element has highest atomic radius?
- 7 Which atom has the largest ionization energy?
Which has the largest ionic radius?
Because K+ has the greatest nuclear charge (Z = 19), its radius is smallest, and S2− with Z = 16 has the largest radius….Ionic Radii and Isoelectronic Series.
| Ion | Radius (pm) | Atomic Number |
|---|---|---|
| N3− | 146 | 7 |
| O2− | 140 | 8 |
| F− | 133 | 9 |
| Na+ | 98 | 11 |
How do you know which element has a larger ionic radius?
In general:
- Ionic radius increases as you move from top to bottom on the periodic table.
- Ionic radius decreases as you move across the periodic table, from left to right.
What is the largest radius element?
francium
Hence, the atomic radius of francium is largest among all the elements in the periodic table.
Which of the following elements has the largest atomic radius?
Francium
Francium has the largest, Helium has the lowest. Atomic radius increases as you go to the left and downward due to the attraction of electrons and the nucleus in an atom.
Which of the following ions is the largest?
Na+ is the largest ion in this group because Na+ has only one electron less than the number of protons it has whereas Mg has 2 and Al has 3 less electrons than their respective proton numbers,so the shielding effect is more in Na+,thus larger size.
Does Na or Na 1 have a larger radius?
As is known from the chemistry course, when the element loses electron (turn into cation, with positive charge), the atom radius is getting low, so obviously Na+ is smaller than Na.
Which element has the largest radius Na or CS?
(A) Comparison of Atomic and Ionic Radius of Group 1 (IA, alkali metals) Elements
| Element | Symbol of Atom | Ionic Radius 4 (pm) |
|---|---|---|
| sodium | Na | 102 |
| potassium | K | 138 |
| rubidium | Rb | 149 |
| cesium | Cs | 170 |
Which of the following element has highest atomic radius?
K has the largest atomic radii because atomic radii decrease from left to right along a period. This is because of the increase in nuclear charge which tends to pull the electron closer to the nucleus and reduces the size of the atom. Hence K has the largest atomic radii.
Which of the following elements has the largest ionization energy?
Thus, helium has the largest first ionization energy, while francium has one of the lowest.
Which atom has the largest ionization energy?
helium
The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.