 ## What is atomic radius and its types?

The radii of atoms are therefore determined by the bonds they form.

An atom will have different radii depending on the bond it forms; so there is no fixed radius of an atom.

## What metal has the smallest atomic radius?

(A) Trends in the Atomic Radius of Group 1 (IA, Alkali Metals) ElementsElementAtomic Number (Z)Trendlithium3smallest |sodium11↓potassium19↓rubidium37↓1 more row

## What element has the largest atomic mass?

uraniumHeaviest Element in Terms of Atomic Weight Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).

## Which elements have the largest atomic radius?

The element which has the largest atomic radius is Cesium.

## What does atomic radius depend on?

Periodic Table Row. In the periodic table, the atomic radius of elements tends to decrease as you move across a row from left to right. The number of protons increases left to right, leading to a greater attractive force in the nucleus. The stronger attraction pulls the electrons closer in, reducing the radius.

## What is PM in atomic radius?

Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10−12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is 742=37 pm 74 2 = 37 pm .

## What is the trend of atomic radius?

Periodic Trends of Atomic Radius An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements. In general, the size of an atom will decrease as you move from left to the right of a certain period.

## Which element has the smallest atomic radius?

heliumAtomic 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.

## How do you compare atomic radius?

Periodic Trends of Atomic RadiusAn atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.In general, the size of an atom will decrease as you move from left to the right of a certain period.

## Is K or Br atom bigger?

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.