Single Choice

Anomalous pair in Mendeleev's periodic table is:

A$$Li, Na$$
B$$Mg, Al$$
C$$Co, Ni$$
Correct Answer
D$$Be, B$$

Solution

Some elements with higher atomic weight were placed before low atomic weight elements in order to maintain similar chemical nature of elements and are called inverted pairs or anomalous pairs. Anomalous pairs of Mendeleev's periodic table are $$Ar-K, Co-Ni, Te-I, Th - Pa$$.

SIMILAR QUESTIONS

Periodic Classification of Elements

Isotopes could find a position in Mendeleev's periodic table. State whether the given statement is true or false.

Contact Details