Locate each group on the periodic table and list the charge of the ions it tends to form.
(a) Group 1A
(b) Group 2A
(c) Group 3A
(d) Group 6A
(e) Group 7A
Here, we have to Locate each group on the periodic table and list the charge of the ions formed. So, first let’s see how is periodic table arranged :
- In the periodic table, the elements are arranged in order of their atomic number. By arranging the elements in this way, those with similar properties (characteristics) are grouped together.
- Periodic table is arranged as a grid. The periodic table has rows running left to right, and columns running up and down. The rows are called Periods and the columns are called Groups.
- There are 18 groups (columns) in the periodic table.
- The elements on the leftmost part of the table are metals. The elements on the right are nonmetals and rightmost are noble gases. These are main group elements, whose properties tend to be largely predictable based on their position in the periodic table. Main-group elements are in columns labeled with a number and the letter A.
- There are transition elements or transition metals, whose properties tend to be less predictable based simply on their position in the periodic table. Transition elements are in columns labeled with a number and the letter B.
- The charges of the elements are based on ionization energy of the elements. Ionization energy is the energy required to remove an electron from a gaseous atom or ion.
- As we move upwards and from left to right across the periodic table, the ionization energy increases and as we move downwards, the ionization energy decreases. This is shown in the diagram below :