valence electrons
Each group has a group number.
number of electrons in the bonding shell vary according to the element. for example group 1 in the periodic table contains elements with ony one electron in their bonding shell, similarly group 2 has elements with two electrons in its bonding shell and so on. the group number in the periodic table denotes the number of electrons in the bonding shell of each element present in that particular group
Transition metals
elements in a group have the same number of valence electrons
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.
No riboflavin is not on the periodic table of elements
3rd group
There is a group of elements in the periodic table as the elements with same properties are clubbed together.
All elements in the same group have the same number of valence electrons.
All elements in a group have same chemical properties. They have same number of valence electrons.
Group 16 elements have same number of valence electrons i.e. 6 . It has charge of 2-.
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.