This not mandatory; see the halogens group.
Elements in the same group have similar chemical properties but not necessarily similar atomic numbers. Elements in the same group have the same number of valence electrons, which determines their reactivity and chemical properties.
A pair of elements in the same group are more likely to have similar properties. This is why groups are also called families. In the main group elements, groups 1,2, 13-18, the elements in a group have the same numbers of valence electrons in their outermost energy levels. This accounts for the fact that they behave in a similar matter in chemical reactions.
According to Chemists, the elements of sodium and chlorine belong to the same atomic family as well as carbon and lead.
Elements with similar chemical properties are found in the same group on the periodic table. This is because elements in the same group have the same number of valence electrons, which determines their chemical behavior. Elements in the same period have different numbers of electron shells, leading to varying chemical properties.
Elements in the same group have similar properties because they have the same number of valence electrons. In contrast, elements in the same period do not necessarily have similar properties, as their chemical behavior is determined by the number of electron shells they have.
elements are in the same group since they react similarly to other elements in that group.
Lead is a transition state element, and all of the transition state elements are metals; there are no non-metal elements in the transition state.
True. Its a matter of the number of electrons in the outer shell. Elements in the same group have the same number.
elements that share the same colum
Elements in group have same number of valence electrons. They also have same chemical properties.
Same elements of group have same valency. They possess same chemical behaviour.
Elements in the same group have similar physical and chemical properties.
The elements in a group do not have the same number of shells, however, the elements in a horizontal row do have the same number of shells.
They share the same number of electrons (=2) in the valence shell: they have the same oxidation state of +2
No, they do not. However, elements in the same group have the same number of valence electrons.
Elements in the same group have similar chemical properties but not necessarily similar atomic numbers. Elements in the same group have the same number of valence electrons, which determines their reactivity and chemical properties.
Elements with the same number of valence electrons are found in the same group or column of the periodic table. This is because elements in the same group have the same number of valence electrons, which determines their chemical properties. For example, all elements in group 1 have 1 valence electron.