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.
Krypton (Kr) is the element in group 18 that is most likely to form a compound with fluorine. It can form compounds like KrF2 under extreme conditions.
Noble Gases, Group 8A
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.
Mg will most likely react with elements in Group 17 (halogens) to form ionic compounds, such as magnesium chloride (MgCl2).
Potassium will most likely form a cation with a +1 charge.
The halogens, listed in column 17 of a wide form periodic table.
what age group is most likely to fall age 60,65,70,80
Krypton (Kr) is the Group 18 element most likely to form a compound with fluorine because it has the highest electronegativity and more tendency to react with other elements, compared to xenon (Xe) and argon (Ar).
The metals have tendency to lose electrons. The elements of group-1,2 and 13 have tendency to form cations.
Fluorine (F) is the most likely to form an anion because it is in Group 17 of the periodic table and readily gains an electron to achieve a stable octet configuration.
Anything in the first group on the periodic table, like hydrogen, sodium, or potassium. Though, through the strength of bonding, hydrogen is the most likely (while all the others are still very likely).