Atoms to Molecules: Valency and Bonding Electrons

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Questions and Answers

What is the hybridization of a carbon atom in methane?

  • sp3 (correct)
  • sp2
  • s
  • sp

What is the geometry of a sp2 hybridized carbon atom?

  • Octahedral
  • Trigonal Planar (correct)
  • Linear
  • Tetrahedral

In ethene, how many sigma bonds are formed by each carbon atom?

  • 3 (correct)
  • 1
  • 4
  • 2

What type of bond is formed by the head-on overlap of atomic orbitals?

<p>Sigma bond (B)</p> Signup and view all the answers

Why does a sp3 hybridized carbon atom have a tetrahedral geometry?

<p>To minimize repulsion between orbitals (C)</p> Signup and view all the answers

Which type of hybridization is found in compounds where carbon forms a double bond?

<p>sp2 (B)</p> Signup and view all the answers

How many unpaired electrons are expected in the ground state electron configuration of B?

<p>2 (C)</p> Signup and view all the answers

Why does carbon form 4 covalent bonds even though its ground state electronic configuration suggests only two unpaired electrons?

<p>It undergoes a process of electron promotion. (B)</p> Signup and view all the answers

What is the valency of Carbon in terms of the number of bonds it can form?

<p>4 (C)</p> Signup and view all the answers

What type of energy orbitals form equal energy bonds?

<p>Filled s orbitals (D)</p> Signup and view all the answers

What happens to Be and B regarding their electron configurations for bonding?

<p>They undergo a process of electron promotion. (D)</p> Signup and view all the answers

Which element is tetravalent and can form 4 covalent bonds?

<p>Carbon (A)</p> Signup and view all the answers

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