Why Is Atomic Radius Of Argon Larger Than Chlorine?

Why is argon bigger in size than chlorine?

The size of argon is greater than chlorine because of the interelectronic repulsions start taking place when an atom attain its octet..

Why the atomic radius of argon is larger than all the member of third period?

Data booklet also gives argon with a larger atomic radius. It has something to do with the bonds between atoms or molecules. With argon having only vander wall forces while other members of period 3 have either covalent or metallic bonding when they exist at there standard state.

What does it mean to have a larger 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.

How do you explain 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.

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

(B) Trends in the Atomic Radius of Elements in Period 3ElementNaArEnergy Level being filled (Valence Shell)third (M)third (M)Nuclear Charge (charge on all protons)11+18+Atomic Radius (pm)15497General Trend(largest)(smallest)1 more row

Which has a larger atomic radius magnesium or chlorine?

Since chlorine’s 17 protons are greater than magnesium’s 12 protons, chlorine will have a greater effective nuclear charge to draw chlorine’s valence electrons closer to the nucleus and, thus, chlorine is expected to have the smaller atomic radius, while magnesium with the lower effective nuclear charge is expected to …

Which is smaller in size Li or F?

Potassium and rubidium are both larger than lithium because atomic size increases going down in a group. Fluorine is in the same period as lithium but to the right of lithium so it’s smaller which means Li is larger in size than F.

Which is smaller in size Cl or Ar?

Answer. Chlorine is smaller than Argon.

How do you calculate atomic radius?

Divide the distance between the nuclei of the atoms by two if the bond is covalent. For example, if you know the distance between the nuclei of two covalently bonded atoms is 100 picometers (pm), the radius of each individual atom is 50 pm.

What has the largest atomic radius?

franciumAtomic 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.

Does atomic radius increase Period 3?

Going across period 3: the number of protons in the nucleus increases so … … therefore the force of attraction between the nucleus and the electrons increases … and the atomic radius decreases.

Why is the ionic radius of K+ smaller than CL?

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. Therefore, the chloride anion will have the larger atomic radius.