Chapter 22- The Periodic Table Flashcards Preview

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Flashcards in Chapter 22- The Periodic Table Deck (11)
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1

What are the properties of group 1?

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

Chemical equation for lithium reacting with water

Lithium+water-> lithium hydroxide+hydrogen

3

Describe sodium S reaction with water (chemical equation in words)

Sodium+water-> sodium hydroxide+hydrogen

4

Write the chemical equation for sodium's reaction with air

Sodium+oxygen-> sodium oxide

5

Chemical equation for lithium's reaction with oxygen

Lithium+oxygen -> lithium oxide

6

What are group 2?

The alkaline earth metals

7

Describe group 2

The alkaline earth metals
-have 2 electrons in outer shell
-less reactive
-eg. Beryllium, magnesium, calcium

8

What are group 7?

The halogens

9

Describe group 7

The halogens
-have seven electrons in their outer she
-trying the gain one
-eg. Fluorine, chlorine, iodine

10

Describe group O (group 8)

The noble gasses
-Unreactive-> have full outer shell
-eg. Helium, argon, neon

11

What is group 1?

The alkali metals