Trends In The Periodic Table Flashcards
1
Q
Elements in group 1 on the periodic table are known as what?
A
Alkali metals
2
Q
What are group 1 metal properties
A
Low density (first 3 less than water)
React with non metals form ionic compounds- positive charge. Compounds are white solids- dissolve to form colourless solution in water
React with water releasing hydrogen
Form hydroxides- dissolve in water gives alkali
3
Q
The further down you go in group 1 elements the…
A
More reactive the element as more shielding- weaker the electro static attraction so loses electron easily
Lower it’s melting and boiling point for same reason
4
Q
Compared with group 1, transition elements
A
Higher melting points -except Mercury- and densities
Stronger/harder
Less reactive so don’t react as vigorously with water/oxygen
