Melting Point Flashcards
1
Q
What is the trend seen in the melting point of alkali metals?
A
The melting point decreases going down the alkali metals.
2
Q
Why does the melting point decrease as we go down the alkali metals?
A
The melting point decreases because the atoms are larger and the valence electrons are held further away from the positive nucleus.
3
Q
What is the trend seen in the melting point of halogens?
A
The melting point increases going down the halogen.
4
Q
Why does the melting point increase going down the halogens?
A
The melting point increases because halogens are diatomic meaning that there is more molecular attraction. The stronger the attraction the harder they are to melt.
