Groups in Periodic table Flashcards
1
Q
Group 1 elements
A
alkali metals (not hydrogen), react explosively with water
2
Q
Group 2 elements
A
alkali earth metals, also reactive with water but found in the earth
3
Q
Group 17 elements
A
They are known as HALOGENS, highly reactive with metal ions that form salts (ionic compunds)
4
Q
Group 18 elements
A
Noble gases, Full Valence shell making them unreactive, exists as single atoms
