What is the reactivity of metals in group 1?

What is the reactivity of metals in group 1?

The reactivity of group 1 elements increases as you go down the group because: the atoms become larger. the outer electron becomes further from the nucleus. the force of attraction between the nucleus and the outer electron decreases.

Why does reactivity increase down a group 1?

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.

Do group 1 metals have a high reactivity?

Properties of the Alkali Metals The group 1 elements are all shiny, soft, and highly reactive. They can easily be cut with a knife. Because of their weak metallic bonding, they have lower melting points than other metal groups. They react quickly with air, and violently with water.

Which properties are characteristic of the group 1 metals high reactivity?

Answer

• they all are very active element.
• they can easily donate electron and gain positive charge.
• 3.in 1 group element Sodium Na is put in kerosene because it will blast when it is in contact with atmosphere.
• they all have 1 valency.

What is the order of reactivity in group 1?

The increasing order of reactivity among group 1 elements is Li < Na < K < Rb CI > Br > I.

What are the characteristics of elements in group 1A?

Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air.

Which of these physical properties do group 1 elements have?

The alkali metals: are soft (they can be cut with a knife) have relatively low melting points.

Why do group 1 metals have similar properties?

Atoms of group 1 elements all have one electron in their outer shell. This means that the alkali metals all have similar chemical properties . When a group 1 element takes part in a reaction, its atoms each lose one electron. This forms positively charged ions .

What properties do group 1 metals have?

Group one elements share common characteristics. They are all soft, silver metals. Due to their low ionization energy, these metals have low melting points and are highly reactive. The reactivity of this family increases as you move down the table.

Are group 1 metals reactive or unreactive?

The alkali metals (group 1) are very reactive, readily form ions with a charge of 1+ to form ionic compounds that are usually soluble in water, and react vigorously with water to form hydrogen gas and a basic solution of the metal hydroxide.