because they almost always give away a valance electron during bonding
Elements from the group 2 of the periodic table form cations.
Alkali Metals are group One elements and have one electron in their outer electron shell. In order to become stable they tend to lose an electron by reacting with something that needs an electron to become stable such as a group seven halogen. The Alkali Metal then become positive ions.This is because they only have on valance electron. This makes it easier to react with other elements and more often also.
stable or unreactive elements. and If you are looking for the group, The Noble Gases are the most unreactive group of elements.
All of them tend not to react with each other until you get lower down the group
Because they are highly reactive with many other elements.
Elements from the group 2 of the periodic table form cations.
Alkali Metals are group One elements and have one electron in their outer electron shell. In order to become stable they tend to lose an electron by reacting with something that needs an electron to become stable such as a group seven halogen. The Alkali Metal then become positive ions.This is because they only have on valance electron. This makes it easier to react with other elements and more often also.
elements are in the same group since they react similarly to other elements in that group.
The group 18 elements are considered inert because they rarely if ever interact with other elements. This is due to the fact that their outermost energy levels are full, which means they don't need to bond with other atoms to become stable.
The elements in Group 0 - Inert Gases group are all highly unreactive and so don't combine with other elements.
Noble Gases
because boron is the first and main element in that group.
base in my experience.... because of the gravity of the earth...
Astatine wouldn't form salt as readily as other elements in Group 17. Astatine is a radioactive metalloid. Other elements in Group 17 are nonmetals.
Noble Gases
stable or unreactive elements. and If you are looking for the group, The Noble Gases are the most unreactive group of elements.
Because group 1 has 1 electron in it's outer most shell and the have to fill the energy level, so they gave there electron and form positive ion (cation). And group 17 has 7 electrons in it's outer most shell and they need to complete their shell so the gain electron and form negative ion (anion).