|
Which of the following is considered to be an anomalous pair of elements in Mendeleev’s periodic table based on atomic weights? |
|||||||
|
(a) |
Na/K |
(b) |
H/He |
(c) |
Te/I |
(d) |
Fe/Co |
|
Which of the following is considered to be an anomalous pair of elements in Mendeleev’s periodic table based on atomic weights? |
|||||||
|
(a) |
Na/K |
(b) |
H/He |
(c) |
Te/I |
(d) |
Fe/Co |