Any age really. It mostly starts to happen in 2nd grade and after that everything else gets harder.
Children can form cliques at any age. The most common age would be once they enter school age. Cliques can be a very bad thing and may lead to bullying of other kids.
With itself or with 5A group
Noble Gases, Group 8A
Krypton
Alliances are most commonly economic or military. Countries develop foreign relations with other countries and form alliances. They're kind of like cliques who form a group to protect each other and help each other.
Kr; Krypton
The halogens, listed in column 17 of a wide form periodic table.
Metals of group 3,2&1 but most efficiently the group 1 metals b'coz of their large eletronegetivity diff. With fluorine which faciliates them to form ionic bond.
Any element that is in group 15 of the periodic table will form three covalent bonds.
what age group is most likely to fall age 60,65,70,80
The metals have tendency to lose electrons. The elements of group-1,2 and 13 have tendency to form cations.
wildfires are most likely to form in places where it is driest