AI flashcards for AS,E&C
(14 cards)
What do elements with the same number of electrons in the outer shell do?
They react in similar ways
Why do elements react to get a full outer shell?
To achieve stability with 8 electrons
What is always plotted on the shells?
The atomic number
What characterizes Group I elements like lithium or sodium?
They have one electron in the outer shell and are very reactive
What characterizes Group 7 elements like fluorine or chlorine?
They have seven electrons in the outer shell and are very reactive
Where are metals located on the periodic table?
On the left-hand side
Where are non-metals located on the periodic table?
On the right-hand side
Where are semi-metals located on the periodic table?
In the middle
List three properties of metals.
- Dense
- Shiny
- Strong
List three properties of non-metals.
- Dull
- Soft
- Brittle
What type of conductors are metals?
Conductors of heat
What type of conductors are non-metals?
Insulators of heat
Fill in the blank: Metals are generally _____ and ductile.
[hard]
Fill in the blank: Non-metals have _____ density and low melting boiling points.
[low]