Chapter 22- The Periodic Table Flashcards
1
Q
What are the properties of group 1?
A
The alkali metals
- have 1 electron on outer shell+want to loose it-> v. Reactive
- looses shine fast(stored in oil)
- low melting point
- low density (floats)
- conduct electricity
- soft
- X alkali metal reacts with water to produce X hydroxide and hydrogen
- X alkali metal reacts with water to produce X oxide
2
Q
Chemical equation for lithium reacting with water
A
Lithium+water-> lithium hydroxide+hydrogen
3
Q
Describe sodium S reaction with water (chemical equation in words)
A
Sodium+water-> sodium hydroxide+hydrogen
4
Q
Write the chemical equation for sodium’s reaction with air
A
Sodium+oxygen-> sodium oxide
5
Q
Chemical equation for lithium’s reaction with oxygen
A
Lithium+oxygen -> lithium oxide
6
Q
What are group 2?
A
The alkaline earth metals
7
Q
Describe group 2
A
The alkaline earth metals
- have 2 electrons in outer shell
- less reactive
- eg. Beryllium, magnesium, calcium
8
Q
What are group 7?
A
The halogens
9
Q
Describe group 7
A
The halogens
- have seven electrons in their outer she
- trying the gain one
- eg. Fluorine, chlorine, iodine
10
Q
Describe group O (group 8)
A
The noble gasses
- Unreactive-> have full outer shell
- eg. Helium, argon, neon
11
Q
What is group 1?
A
The alkali metals
