) Ionic bonds:- a) Are formed in the reaction of an atom of low ionization potential with an atom of high electron affinity.

b) Are sometimes called electro vale bonds.

c) Are generally formed by reaction between alkali metals with halogens.

d) a & b & c. e) a & b

13) a 14) a15) b16) i don't know sorry17) a (maybe)

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.