1. Physical properties of elements

Fill in the correct option for the given questions:
  
Answer variants:
hard
non-metals
Selenium
1. Metals are __________ in nature. 
 
2. Phosphorus is a _________ that is used in fertilisers. 
Login or Fast registration
Previous theory
Exit to the topic
Next task
Copyright © 2026 YaClass Tech Private Limited Contacts Terms and Conditions Privacy Policy