EASY
11th ICSE
IMPORTANT
Earn 100
For elements of second period, the maximum possible covalency is .(four/six)
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Important Questions on Classification of Elements and Periodicity in Properties
EASY
11th ICSE
IMPORTANT
For -block elements, the basic nature of oxides, _____ as we move down the group.(increases/decreases)
EASY
11th ICSE
IMPORTANT
Which of the following statements regarding modern periodic law is incorrect?
EASY
11th ICSE
IMPORTANT
-inner-transition series and -inner-transition series of elements are termed as, respectively.
MEDIUM
11th ICSE
IMPORTANT
Which of the following is correct?
MEDIUM
11th ICSE
IMPORTANT
The first ionization potential of is . The value of electron gain enthalpy of will be
MEDIUM
11th ICSE
IMPORTANT
Which of the following is/are general characteristics of an atom with high electronegativity?
MEDIUM
11th ICSE
IMPORTANT
The oxide formed by the element on extreme right and in the left of periodic table are generally
EASY
11th ICSE
IMPORTANT
Give the general electronic configurations of block element.
