Question

The ion having biggest size is

Answer 1

Answer:

Li

Explanation:

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Answer 2

Answer:

Cesium ion (Cs+) is the biggest ion in size.

Explanation:

Atomic or ionic radii (radius) trend in the periodic table are as followed:

• Across the period : The atomic or ionic size decreases across (from left to right) the period because of the increasing atomic number. Increasing atomic number is increase in number of protons and number of electrons. So when the number electron of protons increase the attraction between positive and negative charges increases, pulling the electrons closer to the nucleus.

• Down the group : The atomic or ionic size increases down the group because of the addition of more orbitals/shells (n).

Therefore,

Cesium ion has the highest atomic radii because it is in the farthest down left corner on the periodic table.