What is the charge on the most stable ion of each of the following elements?

What is the charge on the most stable ion of each of the following elements?
K, I, Mg, O, Al, N, Ba, S Match these elements with the correct charge below. uploaded image

Answer

General guidance

Concepts and reason
The concept used to solve this problem is based on charge of an atom. All the elemental atoms in periodic table have a stable ionic form in which they usually exist while compound formation. For example, alkali metals have a tendency to lose an electron in order to form a monovalent cation.

Fundamentals

The nature of charge obtained by an atom depends on many factors including size, electronegativity etc.

Step-by-step

Step 1 of 8

Part 1 The potassium belongs to alkali metals group in periodic table. The charge on the most stable ion of potassium is .

Part 1

The charge on the most stable ion of is .


Alkali metals have a tendency to lose an electron in order to form a monovalent cation.

Step 2 of 8

Part 2 Iodine belongs to the halogen group in the periodic table. The most stable ion of iodine possesses charge.

Part 2

The charge on the most stable ion of I is .


Halogen are the highest electronegative elements in the periodic table and can keep an extra electron in order to obtain a monovalent anion.

Step 3 of 8

Part 3 Magnesium is an alkali earth metal. The most stable ionic form of magnesium has charge.

Part 3

The charge on the most stable ion of Mg is .


Alkali earth metals lose two electrons in order to achieve the divalent character.

Step 4 of 8

Part 4 Oxygen comes in the category of group 16 elements. The most stable ion of oxygenpossesses charge.

Part 4

The charge on the most stable ion of O is .


Group 16 elements usually gain two electrons in order to achieve the divalent anionic character.

Step 5 of 8

Part 5 Aluminum belongs to the group 13 of the periodic table. Aluminum exists in cationic form and the charge of the ion is .

Part 5

The charge on the most stable ion of Al is .


Group 13 elements often exist as Lewis acid and some elements of this group lose three electrons in order to obtain trivalent cationic form.

Step 6 of 8

Part 6 Nitrogen belongs to the group 15 elements. Nitrogen gives charge in the most stable anionic form.

Part 6

The charge on the most stable ion of N is .


Group 15 elements includes some non-metallic and some metalloids which can gain three electrons and give tri valent anionic form.

Step 7 of 8

Part 7 Barium belongs to the alkaline earth metals in the periodic table. The most stable ion of barium has +2 charges.

Part 7

The charge on the most stable ion of Ba is .


Alkali earth metals lose two electrons in order to achieve the divalent character.

Step 8 of 8

Part 8

Sulphur comes in the category of group 16 elements. The most stable ion of sulfur possesses charge.

Part 8

The charge on the most stable ion of S is .


Group 16 elements usually gain two electrons in order to achieve the divalent anionic character.

Answer

Part 1

The charge on the most stable ion of is .

Part 2

The charge on the most stable ion of I is .

Part 3

The charge on the most stable ion of Mg is .

Part 4

The charge on the most stable ion of O is .

Part 5

The charge on the most stable ion of Al is .

Part 6

The charge on the most stable ion of N is .

Part 7

The charge on the most stable ion of Ba is .

Part 8

The charge on the most stable ion of S is .

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