Elements in group 18 do not often form bonds.
You can determine the number of covalent bonds an element can form by looking at its group number on the periodic table. Elements in group 4 can typically form 4 covalent bonds, elements in group 5 can form 3 bonds, elements in group 6 can form 2 bonds, and elements in group 7 can form 1 bond.
Group 1 elements can form 1 bond, Group 14 can form 4 bonds, Group 16 can form 2 bonds, and Group 17 can form 1 bond.
They don'tThey group elements with the same number of valence electrons.The valence electrons of an element determine how that element bond and how many bonds it forms.So elements with the same number of valence electrons tend to have similar chemical properties.
A metallic bond is a bond between two metals from the same group.
Bromine, being in group 17 of the periodic table (halogens), is more likely to bond with elements in group 1 (alkali metals) or group 2 (alkaline earth metals) to form ionic compounds.
There are a number of elements that can bond with water to create a chemical bond. Some elements include hydrogen, helium oxygen and nitrogen. Why can find details of the elements on Wikipedia.
Almost every other element except the elements in group 18 bond with oxygen to form compounds.
Elements from the group 2 of the periodic table form cations.
The electron configurations of the elements in each main group are regular and consistent:the elements in each group have the same number of valence electrons.
Group 15 elements will typically bond as an anion to a cation from groups 1,2, or 13. They can also bond covalently to any of the elements from groups 13-17.
Groups refer to columns on the periodic table. Elements in the same group or column of the period table have the same number of valence electrons (for the most part). Since how a compound will react and how it will bond depends on the number of valence electrons, elements in the same group will have similar properties.
In general, when an element in group 1 or group 2 combines with elements in group 16 or group 17, ionic bonds are formed between the two elements.