Properties
common
Hydrogen
100

How many Alkali Metals

6

100

Lithium is commonly used in

Cesium is commonly used in

batteries

atomic clocks

100

Which of these is NOT true about Hydrogen?

  1. It is the most abundant element

  2. It has a much lower melting point than the Alkali Metals

  3. It is colorless and odorless

  4. It is more reactive than all of the Alkali Metals

4

200

Alkali Metals react with this substance to form Alkali

( strong base that can neutralize acids)

water

200

Sodium is commonly used in

Commercial compounds

200

who discovered the element?

Henry Cavendish or Robert Boyle.

300

which element reacts with water

All of them are very reactive in water

300

Alkali Metals occur freely nature

No

300

True or False, Hydrogen is the second lightest element  

no, it is the lightest eement

400

Which out of the  are most reactive 

Li-Lithium           Rb-Rubidium

Na-Sodium         Cs- Cesium

K-Potassium       Fr-Francium

Cesium and Francium

400

In nature, Sodium is usually found bonded with which other elements to form sodium chloride? Which one?

  1. Silicon

  2. Germanium

  3. Chlorine

  4. Sulfur

Chlorine 

400

What is the name of the famous Hydrogen blimp that exploded?

The Hindenburg

500

what is the common change of Alkali Metals

-1

500

True or False 

Sodium is used for industrial purposes and commercial compounds

True

500

True or False 

  • Hydrogen is not an Alkali Metal

True