Basics of Chemistry

Basics of Chemistry Worksheet-7

1. Which of the following element is a solid at room temperature?

A. Hydrogen     B. Oxygen                   C. Nitrogen       D. Gold

2. Select the correct definition of Gas.

A. Its particles are very far apart and arranged in a tight pattern.

B. Its particles are very far apart and not arranged in a pattern.

C. Its particles are close and not arranged in a pattern.

D. Its particles are very close and arranged in a pattern.