In modern periodic table, which are the metals, non metals and metalloids among the first 20 elements?

1.      In modern periodic table, which are the metals, non metals and metalloids among the first 20 elements?

Ans.  In the modern periodic table, among the first 20 elements, following are the metals, non – metals and metalloids.

Metals	Non  metals	Metalloids
Lithium (Li) Beryllium (Be) Sodium (Na) Magnesium (Mg) Aluminium (Al) Potassium (K) Calcium (Ca)	Hydrogen (H) Helium (He) Carbon (C) Nitrogen (N) Oxygen (O) Fluorine (F) Neon (Ne) Phosphorus (P) Sulphur (S) Chlorine (Cl) Argon (Ar)	Boron (B) Silicon (Si)

REFER THESE SCIENCE AND TECHNOLOGY CHAPTERS FOR YOUR STUDIES. 

CH. NO. 1 SCHOOL OF ELEMENTS

  

CH. NO. 2 THE MAGIC OF CHEMICAL REACTIONS

  

CH. NO. 3 ACID BASE CHEMISTRY

  

CH. NO. 4 ELECTRIC SPARK

  

CH. NO. 5 ELECTROMAGNETISM

  

CH. NO. 6 WONDERS OF LIGHT PART - I

  

CH. NO. 7 WONDERS OF LIGHT PART II

  

CH. NO. 8 UNDERSTANDING METALS NON METALS

  

CH. NO. 9 AMAZING WORLD OF CARBON COMPOUNDS

  

CH. NO. 10 LIFE'S INTERNALSECRETS

  

CH. NO. 11 REGULATORS OF LIFE

  

CH. NO. 12 LIFE CYCLE

  

CH. NO. 13 MAPPING OUR GENES

  

CH. NO. 14 STRIVING FOR BETTER ENVIRONMENT PART I

  

CH. NO. 15 STRIVING FOR BETTER ENVIRONMENT PART - II

  

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