Question

Question:Complete the following table to predict whether the given atom will gain or lose electrons informing the ion most likely to form when in ionic compounds.

Atom	Gain (G) or Lose (L) electrons	Ion Formed
K	L	K+
Cs	L	Cs+
Br	G	Br-
S	G	S2-
Se	G	Se2-

Short answer

Answer

The table which predict the given atom will lose or gain electrons in forming the ion will be found.

Step-by-step solution

Prediction of the aluminium will lose or gain electrons in forming the ion

The alkali metal present in first group of periodic table is potassium. These are highly electropositive and leading to the loss of one electron for ionic compound formation. Thus, K will lose an electron for Ion formation.

Prediction of the Cesium will lose or gain electrons in forming the ion

The alkali metal present in first group of periodic table is cesium. These are highly electropositive and leading to the loss of one electron for ionic compound formation. Thus, Cs will lose an electron for Ion formation.

Prediction of the Bromine will lose or gain electrons in forming the ion

Halogen present in 17^th group of periodic table is Bromine. These are highly electronegative and leading to the gain of one electron for ionic compound formation. Thus, K will gain an electron for Ion formation.

Prediction of the Sulfur will lose or gain electrons in forming the ion

The group of chalcogen in group 16 of periodic table is Sulfur. These are highly electronegative and leading to the gain of 2 electron for ionic compound formation. Thus, K will gain 2 electron for Ion formation.

Prediction of the Selenium will lose or gain electrons in forming the ion

The group of chalcogen in group 16 of periodic table is Sulfur. These are highly electronegative and leading to the gain of 2 electron for ionic compound formation. Thus, K will gain 2 electron for Ion formation.