What Happens When Group 1 And Group 7 Elements React Together?

Why do Group 1 and 7 elements react together?

State the trends in reactivity of the group 1 and group 7 elements and explain the reasons why.

Elements react by gaining or losing electrons.

Group 7 elements however have 7 electrons in their outermost shells, so they react by gaining an electron to form an outermost ring of 8 electrons..

What is the reactivity of Group 1 and Group 7 elements?

The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group. This is the opposite trend to that seen in the alkali metals in Group 1 of the periodic table . Fluorine is the most reactive element of all in Group 7.

What happens when a group 1 element reacts?

When an element in group 1 takes part in a reaction, its atoms lose their outer electron and form positively charged ions , called cations . The more easily these cations form, the more reactive the metal.

How do group 1 elements react with halogens?

Group 1: The Alkali Metals All the alkali metals react vigorously with halogens to produce salts, the most industrially important of which are NaCl and KCl. Sodium Chloride is used as a preservative for meat and to melt the ice on the roads (via freezing point depression).

Is Group 1 or Group 7 more reactive?

As you go down group 1 (the alkali metals) in the periodic table, the elements get more reactive. As you go up group 7 (the halogens), again the elements get more reactive.

Why does Group 7 get less reactive?

Reactivity of the elements in group 7 decreases down the group. This is because the electrons in the outer shell are further away from the nucleus.