An element R has the atomic number of 12, (i) Draw it electron configuration. (ii) determine the charge of its ion. (iii) write the formula of the compound formed between R and Chlorine. (iv) state the group and period of R in the periodic table.​

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

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