In each of the following ionic compounds identify the main group to which X belongs:
A. XF2
B. MgX
C. X2O3
D. Na2X
To identify the main group to which X belongs in each of the given ionic compounds, we need to look at the charges of the other elements present in the compound.
A. XF2: In this compound, F has a charge of -1. Since the compound is neutral, X must have a charge of +2 to balance the charges. Based on the charge, X likely belongs to Group 2 of the periodic table, also known as the alkaline earth metals.
B. MgX: In this compound, Mg has a charge of +2. For the compound to be neutral, X must have a charge of -2 to balance the charges. Based on the charge, X likely belongs to Group 16 of the periodic table, also known as the chalcogens.
C. X2O3: In this compound, O has a charge of -2. For the compound to be neutral, X must have a charge of +3 to balance the charges. Based on the charge, X likely belongs to Group 13 of the periodic table, also known as the boron group.
D. Na2X: In this compound, Na has a charge of +1. For the compound to be neutral, X must have a charge of -1 to balance the charges. Based on the charge, X likely belongs to Group 17 of the periodic table, also known as the halogens.
Therefore, the main group to which X belongs in each compound is:
A. Group 2
B. Group 16
C. Group 13
D. Group 17
To determine the main group to which the element 'X' belongs in each of the given ionic compounds, you need to look at the charges of the other elements in the compound.
A. XF2:
In this compound, 'F' has a charge of -1 since it belongs to Group 17 (halogens) and typically gains one electron to achieve a stable configuration. The compound is neutral, so the charge of 'X' should balance out the charge of 'F'. Since there are two 'F' ions, each with -1 charge, 'X' must have a charge of +2 to balance it out.
Therefore, 'X' belongs to Group 2 in the periodic table, also known as the alkaline earth metals.
B. MgX:
In this compound, 'Mg' is known to have a charge of +2. Since the compound is neutral, 'X' must have a charge of -2 to balance out the charge of 'Mg'.
Therefore, 'X' belongs to Group 16 in the periodic table, also known as the chalcogens.
C. X2O3:
In this compound, 'O' has a charge of -2, as it usually gains two electrons to achieve stability. The compound is neutral, so the charges of 'X' and 'O' must balance out. Since there are three 'O' ions, each with -2 charge, 'X' must have a charge of +3 to balance them out.
Therefore, 'X' belongs to Group 13 in the periodic table, also known as the boron group.
D. Na2X:
In this compound, 'Na' has a charge of +1, as it tends to lose one electron to attain stability. The compound is neutral, so the charges of 'X' and 'Na' must balance out. Since there are two 'Na' ions, each with a +1 charge, 'X' must have a charge of -1 to balance them out.
Therefore, 'X' belongs to Group 17 in the periodic table, also known as the halogens.