Question

Distinguish between a non metal a noble gas and a metal on the basis of valence electrons

Answer 1

HEYA MATE : )
Metal donates electrons
Non metal gain electrons
noble gas had stable electronic configuration

Answer 2

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Explanation:

VALENCE ELECTRONS OF METALS & NON METALS

METALS

• If the number of electrons in the outermost orbit is  1, 2 and 3  
• eg:-sodium ,calcium and aluminium
• it forms positively charged ions-ELECTRON DONOR

NON METALS

• If the number of electrons in the outermost orbit is  5, 6 and 7
• eg:-chlorine, oxygen
• it forms negatively charged ions-ELECTRON ACCEPTOR

METALLOIDS

• Number of valence electrons are normally 4

NOBLE GAS

• It has a stable electronic configuration

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