Group 1 & Group 2 elements

Group 1 elements are also known as

• Noble gas

• Halogen

• Alkaline earth metals

• Alkali metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Arrange the elements in group 1 from the top to bottom of the group.

• Li, Na, K, Fr, Rb, Cs

• Li, Na, K, Rb, Fr, Cs

• Li, Na, K, Rb, Cs, Fr

• Fr, Cs, Rb, K, Na, Li

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

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

Tags

NGSS.MS-PS1-2

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

• 0

• 1

• 2

• 3

What can be seen when a piece of magnesium ribbon is placed in cold water?

• A vigorous effervescence occurs

• Bubbles of gas form slowly on the magnesium

• The magnesium floats on the surface of the water and reacts quickly

• The magnesium glows and a white solid is produced

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is the most reactive in water?

• Lithium
• Sodium
• Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• 2Na + 2H₂O → 2NaOH + H₂
• Na + H₂O → NaOH + H
• Na + H₂0 → NaCl + CO₂
• 2Na + 2H₂O → 2NaH₂ + O₂

Tags

NGSS.HS-PS1-7

Which of the following is NOT an alkali metal

• Li
• Cl
• K
• Cs

Which is the lightest alkali metal?

• Aluminium
• Hydrogen
• Lithium
• Potassium

Tags

NGSS.HS-PS1-1

What is the atomic number of lithium

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1