Which element in the third period has the largest atomic radius?

Considering this trend Sodium is having a highest atomic radius in 3rd period.

Which elements have the largest atomic radius?

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 has largest radius?

Thus O2− has a minimum z-effective thus largest radius.

Is Br or Br 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.

What element has the second largest atomic radius?

(A) Trends in the Atomic Radius of Elements in Period 2

Which has the largest radius Co3+ Mn3+ fe3+ Cr3+?

Fe 3+ has highest radii because by going left to right in the periodic table , the size get decreased so .. Fe 3+ >Co3+ >Cr3+ >Mn3+ .

Which ion has the smallest radius?

As Oxygen is present at the top of the group, therefore, it has the smallest radius due to less number of shells.

Which of the following has the smallest radius?

Helium has the smallest atomic radius.

Is BR smaller than Kr?

Br- has to be larger than Kr because it has one less proton, hence electron repulsion is more pronounced.

Which one has the largest size BR I?

Br is placed above I in periodic table. Thus Br is smaller than I+,I,I−. Among I+,I,I− the lowest effective nuclear charge is experienced by I−. Thus it has largest size.

Which is larger K+ or K?

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+.

What metal has the smallest atomic radius?

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 element in the second period has the smallest atomic radius?

As effective nuclear charge increases the atomic radius decreases and hence in second period effective nuclear charge of Fluorine is highest and hence F will have least atomic radius.

Which element in Period 4 has the largest atomic radius?

For Period 3, the Group1 Alkali Metal (potassium, lowest Z) has the largest atomic radius and the Group 7/17 Halogens & Group 0/18 Noble Gas (bromine & krypton, highest Z’s) have the smallest atomic radii (there is some uncertainty in the noble gas radii).
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