Question

How many non metal are name than

Answer 1

Answer:

17 nonmetal elements

The 17 nonmetal elements are: hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulfur, chlorine, argon, selenium, bromine, krypton, iodine, xenon, and radon.

Seventeen elements are generally classified as nonmetals: most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine); and a few are solids (carbon, phosphorus, sulfur, selenium, and iodine).

Answer 2

$\star$ $\large\underline\mathrm\red{Non \: metal :- }$

Non metals are those which have lack of metallic property. They are most gases and liquid. Non metals are good heat and electricity. There are seventeen non metals known today.

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★ Seventeen non metals are :-

1. Hydrogen

2. Helium

3. Nitrogen

4. Oxygen

5. Flourine

6. Neon

7. Chlorine

8. Argon

9. krypton

10. Xenon

11. Radon

12. Sulphur

13. Phosphorus

14. Selenium

15. Bromine

16. Iodine

17. Tennessine

★ Additional information :-

• There are 17 non metals known today.
• Non metals are able to form acids, anions and acidic oxides.
• Non metals form stable compunds with hydrogen.
• Non metals do not conduct electricity except graphite.
• Some properties of non metals are opposite of metals.