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Which electronic configurations represent to a transition element?
Low melting point of manganese in the 1st transition series is due to:
Most common oxidation state of cerium (Ce) is :
Which of the electronic configuration of an atom has the lowest ionization enthalpy?
A common trend to both groups I and II elements in the periodic table, as the atomic number increases are:
The difference between ions and atoms is of:
On going down a main subgroup in the periodic table (example Li to Cs in IA or Be to Ba in IIA) the expected trend of change in atomic radius is a :
An element R forms the highest oxide R2O5. R belongs to:
Amongst the element with following electronic configurations, which one may have the highest ionisation energy?
Which pair of elements is chemically most similar?
Lanthanoid contraction is caused due to :
In the transition elements, the incoming electron occupies (n-1)d sublevel in preference to:
In a periodic table from I group to VII group electronegativity of elements:
Which represents the electronic configuration of the most electropositive element?
An element X is placed in group IA of the perodic table because it forms: