Question

1)is the relation R = {(1,1),(2,1),(3,1)} on the set A= {1,2,3}, a function from A to A
2) is the relation R = {(1,1),1,2),(2,3)} on the set A ={1,2,3} a function from A to A
answer it asap​

Answer 1

Step-by-step explanation:

Let A={1,2,3} and R={(1,1),(1,3),(3,1 ),(2,2),(2,1),(3,3)},then the relation R on A is: · On set `A= {1,2,3}`

Answer 2

Answer:

If two cations have the same size and charge, then the one with pseudo noble gas configuration ( with 18 electrons in the outermost shell) has greater polarising power than the other with noble gas configuration (with 8 electrons in the outermost shell). This explains why CuCl is more covalent than NaCl