Question

Which observation provides information about the physical properties of sodium?
1- Sodium can be cut with a knife
2- Sodium fizzes when it is placed into water 3- After Sodium is placed into water, the temperature increases by 25C
4- Sodium sparks and catches on fire when it is placed into water​

Answer 1

Answer:

Sodium can be cut with a knife .

Explanation:

• Sodium lies in the first group of the periodic table.
• The first group consists of Alkali metals .
• Alkali metals can be cut through a knife.