Chemistry

What are the general physical properties of Group 1 elements (alkali metals)?

Group 1 elements have low and boiling points, conduct electricity and low densities

How do the chemical properties of alkali metals change down the group?

Metal will dart on surface of water. The reaction is very vigorous and effervescence is observed

What are the general trends down group 1

Reactivity increases down the group, density increases down the group and melting and boiling point decreases down the group

What are the general physical properties of Group 17 elements (halogens)?

low melting and boiling point, non conductor of electricity and exist as diatomic molecules

What are the general trend down group 17

reactivity decreases down the group, me\lting and boiling point increases down the group and elements become darker down the group

What is a displacement reaction in regards to halogens?

A displacement reaction occurs when a more reactive halogen displaces a less reactive halogen from a compound.

What are the physical properties of Group 18 elements (noble gases)?

low melting and boiling point, exist as monoatomic gases

What is the trend in boiling points for noble gases down the group?

Melting point and boiling point increases down the group

What are the physical properties of transition metals

High melting and boiling point, high density, good electrical conductor