Chapter 12 Periodic Table Flashcards
Alkali metals and properties
Appearance of alkali metals
and their hardness?
They are silvery solids
They are soft and can easily be cut with a 🔪
Do the metals have low density or high density and does the density increase or decrease down the group
They have low densities and the densities increase down the group
Why are they called alkali metals
This is because they are highly reactive towards water and they give an alkali solution when the reaction with water is complete
When the metals react with water. What products do they form?
They form the hydrogen gas and that metal oxide
Which type of bond do they make and why?
They make an ionic bond as they have 1 electron I’m their last shell and to achieve satisfaction they lose one to become chill like noble gases
What happens to the melting point down the group?
It decreases down the group
