Chem 1.5 Flashcards
1
Q
A
2
Q
Alkali Metals
A
- Easy to cut
*Shiny
*Solid at room temp. - VIOLENT REACTION with WATER to liberate HYDROGEN GAS
- Always bonded with another element
3
Q
Alkaline Earth
Metals
A
- Light
- Very reactive metals
- React w/ oxygen to form oxides
- Solid at room temp.
4
Q
Transition Metals
A
- Form multivalent ions
- Good conductors of heat and electricity
- A lot of them combine with oxygen to make oxides
5
Q
Halogen
A
- Can be any state of matter at room temp.
- Dull
- Non-conductors
- Extremely reactive
6
Q
Noble Gases
A
- Colourless gases that are extremely unreactive
- Found in small amounts in the earth’s atmosphere
- Gases at room temp.
- Low melting and boiling points
7
Q
Rare Earth Elements
A
- Made of the lanthanide series and actinide series to be called trans-uranium
8
Q
Trans-uranium meaning?
A
Synthetic or man-made
9
Q
Periodic Law
A
states that when elements are arranged by their atomic number, their properties repeat in a pattern and change gradually
