What is the reactivity of group 1?

The reactivity of Group 1 elements increases as you go down the group because: the outer electron gets further from the nucleus as you go down the group. the attraction between the nucleus and outer electron gets weaker as you go down the group – so the electron is more easily lost.

What is the reactivity of group?

Explaining trends The reactivity of Group 1 elements increases as you go down the group because: the atoms get larger as you go down the group. the outer electron gets further from the nucleus as you go down the group.

Does group 1 have high or low reactivity?

The alkali metals are a group of chemical elements from the s-block of the periodic table with similar properties: they appear silvery and can be cut with a plastic knife. Alkali metals are highly reactive at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1.

What does group 1 mean in the periodic table?

alkali metals
The Group 1 elements are called the alkali metals. They are placed in the vertical column on the left-hand side of the periodic table . Group 1 elements form alkaline solutions when they react with water, which is why they are called alkali metals.

Why is Group 1 most reactive?

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.

Which element in Group 1 is the least reactive?

lithium
Reactivity of Group 1 Elements The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive.

Why is group One the most reactive?

Elements in the same group of the periodic table have the same number of valence electrons. These are the electrons in their outer energy level that can be involved in chemical reactions. All the elements in group 1 have just one valence electron. This makes them very reactive.

Why is group 1 most reactive?

Which is the rarest group 1 element?

Francium
Francium, a natural radioactive isotope, is very rare and was not discovered until 1939.

Why is Group 2 reactive?

Reactivity of Group II elements increases down the group. This can be explained by the increase in ease at losing two outer electrons as we descend the group. The loss of electrons becomes easier due to the decreasing ionisation energy required.

What are groups in the periodic table?

Periodic Table Groups are columns of elements found in the modern periodic table. A group is also known as a family of atoms in which elements are arranged within each group of the periodic table.

What is group 15 on the periodic table?

Nitrogen group element, any of the chemical elements that constitute Group 15 (Va) of the periodic table. The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), and moscovium (Mc).

What is group vs period in periodic table?

Groups Periodic table is arranged into periods and groups Groups are vertical columns while periods are the horizontal rows Elements in a group share chemical or physical properties whereas elements in a period have the same electron configurations There are 7 periods and 18 groups on the periodic table

What is the reactivity of group 1? The reactivity of Group 1 elements increases as you go down the group because: the outer electron gets further from the nucleus as you go down the group. the attraction between the nucleus and outer electron gets weaker as you go down the group – so the electron…