Compare and contrast the alkali metals and the alkaline earth metals

Answer IS in the explanation.

Explanation: Alkaline Earth metals are group 2 of the periodic tables, whereas alkali metals are in group 2. The major difference between alkaline and Alkali is that Alkaline earth metals have two valence electrons whereas alkali metals have one valence electron.

Alkali

Alkaline Earth Metals

Soft metals

Hard metals

One valence electron

Two valence electrons

Form 1+cations

Form 2+cations

More reactive

Less reactive

low melting and boiling point

High(er) melting and boiling point

Group 1

Group 2

Used for group one elements on P.Table

Used for group two elements on P.Table

Lower ionizing energy

High(er) ionizing energy

Explanation: here are the differences

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.