The following data repersents the distribution of electons protons and neutrons in atoms of four element AltBltCltD

Answer the following questions:
(a)Describe the electronic distrubution in atom of element B. , (b) Is elements B a metal or a non metal? why ?
(c ) which two elements form a pair of isotopes? ,(d) which two element form in pair of iosbars?

Explanation

(a) The electronic distribution of element B is 2,8,7
(b) The element B is non metal (CI) .Its atom needs only one electron to have the configuration of nearest noble gas element argon (2,8,8)
(c ) The elements B and C form pair of isotopes since both of them have same number of electrons 17 and also same stomic number (Z=17)
(d) The elements A and D represent pari of isobars since both of them have same number (a=40)