Non Metal, Physical Properties

Class-10 NCERT (CBSE), Non- Metal: Physical Properties.

1. AKANKSHA INTEGRATED B.SC. B.ED LOVELY PROFESSIONAL UNIVERSITY, PHAGWARA Class- X Physical Science Non-Metals: Physical Properties

2. Non-metals exist in solid and gaseous state, for example Nitrogen, Oxygen, Carbon, S ulphur. Physical State

3. Br 2 is a liquid. Exception

4. They lack luster (shine). Luster

5. Diamond and Graphite are lustrous. Exception

6. They are soft in nature. Hardness

7. Diamond is the hardest natural substance known. Exception

8. . Malleable and Ductile Non-metals are not malleable and ductile because  they are brittle . They break on being hammered or stretched as they have low tensile strength.

9. Questions Que-1. Which of the following statements is correct? (a) All metals are ductile . (b) All non-metals are ductile . (c) Generally, metals are ductile . (d) Some non-metals are ductile . Que-2. Which of these non- metals are used in fertilizers? (a) Nitrogen (b) Phosphorus (c) Iodine. (d) Both a & b