The element potassium (K) present in group 1 has the largest atomic radius.
Which of the following elements has the largest atomic size?
Barium (Ba) will have the largest atomic size.
Which one of the following has the largest atomic radii?
Na has the largest atomic radius.
Which metal has largest atomic size?
Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.
What is the atomic radius of Al?
184 pm
Which element has a larger atomic radius than phosphorus?
Atomic Radius of the elements
| Helium | 31 pm | 161 pm |
|---|---|---|
| Phosphorus | 98 pm | 183 pm |
| Selenium | 103 pm | 184 pm |
| Xenon | 108 pm | 185 pm |
| Silicon | 111 pm | 188 pm |
Which one of the following has the smallest atomic radius?
Helium has the smallest atomic radius.
What is the atomic radius of S?
180 pm
What Halogen has the largest atomic radius?
(B) Trends in the Atomic Radius of Group 17 (VIIA, Halogens) Elements
| Element | Atomic Number (Z) | Trend |
|---|---|---|
| fluorine | 9 | (smallest) ↓ |
| chlorine | 17 | ↓ |
| bromine | 35 | ↓ |
| iodine | 53 | ↓ (largest) |
What element in the third period has the largest atomic radius?
Considering this trend Sodium is having a highest atomic radius in 3rd period.
What is the atomic size of sodium?
227 pm
What is carbon’s atomic radius?
170 pm
Why is the ionic radius of K+ smaller than CL?
Answer: In other words, K+ has bigger effective nuclear charge than Cl− , which translates to a bigger net positive charge felt by the outermost electrons. This will compress the energy levels a bit and make the ionic radius smaller for the potassium cation.
How do you find atomic radius?
Atomic radius is determined as the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.