The element potassium (K) present in group 1 has the largest atomic radius.
Which of the following has larger atomic radius?
Na has the largest atomic radius.
Which one has the largest atomic radius?
Explanation: 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 has largest radius 1s2?
- Spain.
- Sri Lanka.
- Switzerland.
- Thailand.
- United Arab Emirates.
- United Kingdom.
- United States.
- Uruguay. India.
Which has larger atomic radius K 19 or CA 20?
Answer. Answer: Potassium ( k ) – > atomic number 19 has larger atomic radii.
What has the smallest atomic radius?
Explanation: Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus.
What element has the second largest atomic radius?
(A) Trends in the Atomic Radius of Elements in Period 2
| Element | Li | Be |
|---|---|---|
| Energy Level being filled (Valence Shell) | second (L) | second (L) |
| Nuclear Charge (charge on all protons) | 3+ | 4+ |
| Atomic Radius (pm) | 134 | 90 |
| General Trend | (largest) | → |
Why is atomic radius of K greater than Br?
Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.
Which is larger k or k+?
These are electrons with “highest energy level”. When at neutral, the potassium ion in the form of K has an electronic configuration of: … The K+ ion has its outermost electrons on the third energy level now and is size is smaller than that of K ion. Hence, K is larger than K+.
Which has largest radius CO 3?
c)Fe+3. d)Co+3. Ionic radius of Mn3+ will be largest.
Which is larger F or Na+?
Na+ has smaller size than F- because both Na+ and F- have equal number of electrons i.e.10 . After losing an electron Na will have less electron cloud and more effective nuclear charge whereas F after gaining an electron will have less effective nuclear charge than the parent atom so the size increases .
Which of the following has the largest radius FCNO?
As we can see, only Potassium has four electron shells, therefore Potassium has the largest atomic size. Showing once again how Potassium has the largest atomic radius, and therefore the largest atomic size.
Is BR or BR 1 bigger?
Br – will have the largest atomic size because Br- has one extra electron in its valence shell which due to its unbalanced negative charge will be repelled and hence the atomic radius of Br- will increase.
Why does K have a larger radius than Ca?
The potassium has bigger atomic size than calcium because due to difference in nuclear charge the attraction between nucleus and more electrons of Ca then potassium it is increased the atomic radius of Ca is decreases due to contraction .
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.