What are the properties of the elements in Group 1?

Physical properties of the group 1 elements

• are soft (they can be cut with a knife)
• have relatively low melting points.

What are the key properties of Group 1 alkali metals?

The alkali metals are a group of chemical elements in the periodic table with the following physical and chemical properties:

• shiny.
• soft.
• silvery.
• highly reactive at standard temperature and pressure.
• readily lose their outermost electron to form cations with a charge of +1.

What are the properties and trends of Group 1?

Explaining the trend 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.

What are the characteristics of Group 1a?

These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air. The name comes from the fact that when these metals or their oxides are dissolved in water, a basic (alkaline) solution results.

What are the properties of group 0 elements?

The noble gases all have low boiling points : helium, at the top of group 0, has the lowest boiling point of any element. boiling point increases going down the group….Boiling points

• the atoms become larger.
• the intermolecular forces between the atoms become stronger.
• more energy is needed to overcome these forces.

Why is group 1 most reactive?

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 are the properties of group 2 elements?

Alkali Earth Metals – Group 2 Elements For a metal, alkali earth metals tend to have low melting points and low densities. Being a metal, they are obviously good conductors of heat and electricity. The general electronic configuration of Group 2 elements is ns2.

Is Group 1 or 2 more reactive?

Less reactive than Group I elements. This is because it is more difficult to lose two electrons compared to losing just one electron. React with water to form alkaline solutions. Reactivity increases down the group.

Are the group 0 elements reactive?

atoms of group 0 elements have complete outer shells (so they are unreactive)

What are the properties of group 8 elements?

Lesson Summary

• They are inert gases located on the right of the periodic table.
• They have a full-set of valence electrons, so they’re stable.
• They are colorless, odorless and tasteless.
• They have low melting and low boiling points.
• They can be found in small amounts in the Earth’s crust and the Earth’s atmosphere.