Question

question 4
4 pts
identify the element that is a gas at normal atmospheric conditions?
carbon
mercury
neon
aluminum

Explanation:

To determine the element that is a gas at normal atmospheric conditions (25°C, 1 atm), we analyze each option:

• Carbon: Solid (e.g., graphite, diamond) at normal conditions.
• Mercury: Liquid metal at normal conditions.
• Neon: A noble gas, exists as a gas at normal atmospheric conditions.
• Aluminum: Solid metal at normal conditions.

Answer:

C. Neon