Consider the molecule bf3. (a) what is the electron config- uration of an isolated b atom? (b) what is the electron con- figuration of an isolated f atom? (c) what hybrid orbitals should be constructed on the b atom to make the b–f bonds in bf3? (d) what valence orbitals, if any, remain unhybrid- ized on the b atom in bf3?

The answer is 3,5g co

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The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later