Question

than that of Gallium Jocs estas
statement is True or False?
(ii) Between Be and B, which one will have greater shielding effect and why?
(iii) Justify giving suitable example that the properties of the elements are periodic
function of their atomic numbers.
(v) Discuss the trend in electron gain enthalpy in 16 COUP
(1=1+1=2​

Answer 1

Answer:

Although some people fall into the trap of visualizing atoms and ions as small, hard spheres similar to miniature table-tennis balls or marbles, the quantum mechanical model tells us that their shapes and boundaries are much less definite than those images suggest. As a result, atoms and ions cannot be said to have exact sizes; however, some atoms are larger or smaller than others, and this influences their chemistry. In this section, we discuss how atomic and ion “sizes” are defined and obtained.