Which One of the Following Atoms Has the Largest Radius

From top to bottom in a group. Giving a reason explain in following.

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On the periodic table of the elements atomic radius tends to increase when moving.

. Thus helium has the largest first ionization energy while francium has one of the lowest. The following charts illustrate the general trends in the first ionization energy. For instance the first ionization decreases from beryllium to boron and from magnesium to aluminum as electrons from the p.

There are some fluctuations in these general trends. A metallic radius is one-half the distance between the nuclei of two adjacent atoms in a crystalline structure when joined to other atoms by metallic bonds. Iii Element B has a valency of 1.

Ii An atom of element C has a larger size than an atom of element A. I Element A is non-metal. The smallest molecule is the diatomic hydrogen H 2 with a bond length of 074 Å.

Some of the largest molecules are macromolecules or supermolecules. The table of permselectivity for different substances contains examples. Covalent radius is the nominal radius of the atoms of an element when covalently bound to other atoms.

Molecular formulas Chemical formula types. Effective molecular radius is the size a molecule displays in solution. The position of three elements A B and C in the periodic table is given above.

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