phosphorous
The Zinc Family also known as group IIB is the second least reactive I believe. The least reactive family is the one with a full p sublevel, the noble gases, the next least reactive would be the family with a full d sublevel. Since group IIB has a full d sublevel, it must be the next least reactive family.
Sodium is more reactive then Magnesium as it is a group 1 element and magnesium is a group 2 element
Caesium is the 5th element in group I of the periodic table. It is an alkali metal, and they become more reactive as you go down the group from lithium to sodium to potassium etc. So we would expect that caesium is highly reactive, even more reactive than rubidium.
Fluorine is the most reactive element period. So, it is therefore more reactive than carbon. However, as carbon forms the basis of organic molecules, people come across its compounds more often.
Yes you are correct, potassium being an alkali metal is definitely more reactive than argon which is a noble gas (group 18 element). Potassium reacts violently with just water while argon is very inert and stable, which is why it remains in the atmosphere as a monatomic element.
metals
Highly reactive because they only have 7 electrons. They need 8 to be a stable element.
Group 1, the Alkali Metals, which are extremely reactive.
flourine, reactivity goes down group 7Florine (F)
Sodium - group 1
All metals are highly reactive because of their properties. As you move left on a period while moving down you move close to Francium (most-metallic). Since group 1 is the most farthest left group, it is the most metallic, therefore the most reactive.
Group seven is known as the halogen group. The least reactive element in group seven is astatine. Fluorine is the most reactive.
Group 7. Fluorine, which belongs to group 7, is the most reactive element.
group 1
francium
Francium.
Francium