How many electrons are in the outer orbital?
A. 1
B. 2
C. 3
D. 4
1
100
How does it react when mixed with water?
A. It releases CO2
B. Changes color
C. Doesn't react
D. It reacts violently
D. It reacts violently especially with water which is why they are usually found in mineral oil. The vigor of reactions increases down the group.
100
What kitchen ingredient has an Alkali metal in it?
A. Potassium is found in pepper.
B. Sodium is found in table salt.
C. Francium is found in sugar.
D. Rubidium is found in baking soda.
B. Sodium is found in table salt.
100
Can Alkali metals form with water to make Hydrogen?
Yes. Alkali metals mix violently with water to form strong gases and Hydrogen gases.
100
How much of all atoms in the universe does Hydrogen make up?
A. 2%
B. 45%
C. 82%
D. 93%
D. 93%
200
How many elements are in the Alkali metal group?
A. 4
B. 5
C. 6
D. 7
C. 6 (Lithium, Sodium, Potassium, Rubidium, Caesium, Francium)
200
Alkali metals are ____.
A. Soft and low density
B. Hard and high density
A. Soft and low density
200
True or False?
Alkali metals are used in batteries.
True. Alkali metals are used in batteries, soap, fertilizers, and glasses.
200
What properties does Hydrogen possess?
Hydrogen is a colorless, odorless, tasteless gas. It is also the least dense gas known.
200
True or False?
The Alkali metal group is considered the least similar group in the periodic table.
False. They are actually known as the most similar group.
300
What color are Alkali metals?
A. White
B. Silver
C. Brown
D. Black
B. Silver with the exception of Caesium which has a tint of gold
300
True or False?
Alkali metals are bad conductors of electricity.
False, Alkali metals are great conductors of heat and electricity.
300
____ and ____ are essential for life to exist.
A. Sodium and Potassium
B. Rubidium and Francium
A. Sodium and Potassium
300
Why is Hydrogen grouped with Alkali metals?
A. It is an Alkali metal
B. It looks like an Alkali metal
C. It has 1 electron
D. It reacts similar to Alkali metals
Both C and D. Hydrogen has 1 electron like Alkali metals and reacts similar to them.