Question

6.The atomic number of element A, B,C & D are 3,9,4 & 8 respectively.Elements
having metallic nature among these are
a) B& E b) A & B c) A & C d) B & C
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Answer 1

Answer:

A&C

Explanation:

A will donate 1 electron and C will share 4 electron.

while B will gain 1 electron and D will gain 2 electron

here a resembles lithium , B resemble fluorine , C resemble carbon , D resemble oxygen..