Group 1 elements

What does the atomic number tell?

• number of electrons

• number of protons

• number of neutrons

• both electrons and protons in an atom

What gas is given off when group 1 elements react with water?

 

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

How many electrons are in the outer shell of group 1 elements?

• 1

• 2

• 3

• 4

Which of the following is the most reactive in water?

• Lithium

• Potassium

• Sodium

What is the symbol equation for the reaction between sodium hydroxide and water?

• A

• B

• C

• D

Which of the following metal is not an alkali metal?

• Magnesium

• Rubidium

• Sodium

• Casium

The melting point of alkali metal is

• depends on the atmosphere

• zero

• low

• high

What happens when alkali metals are exposed to moist air?

• formation of chlorides

• formation of nitrates

• formation of sulphates

• formation of oxides

Which of the following is true regarding the reactivity order of alkali metals?

• Li < Na > K

• Li < Na < K 

• Li > Na < K

• Li > Na > Cs

Alkali are so reactive to air they are generally stored in what?

• water

• cotton

• vaults

• oil