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If valence electrons in iron are 8 why is it not in zero group element?

Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The electron configuration of Fe3+ is (atomic number of Fe=26)
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
To which group of the periodic table does an element having electronic configuration [Ar]3d54 s2 belong?
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The element with outer electronic configuration (n-1)d2ns2, where n=4, would belong to
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Mention similarity of properties of hydrogen with one property of Group II elements and two properties of Group 17 elements.
HARD
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
What would be the IUPAC name for the element with the atomic number 120?
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
To which group of the long periodic table do the halogen elements belong?
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Among the given configurations, identify the element which doesn't belong to the same family as the others?
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The IUPAC nomenclature of an element with electronic configuration Rn5f146d17s2 is:
MEDIUM
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements

Consider the following radioactive decays

I. U92⟶-α90Th and

II. 90Th⟶-αRa88

In which case group of parent and daughter elements remains unchanged.

EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
What will be the IUPAC symbol and name for the element with atomic number 123 ?
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Mention the dissimilarity of properties of hydrogen with one property of group 1 elements and two properties of group 17 elements.
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The element Z=114 has been discovered recently. It will belong to which of the following family/group and electronic configuration?
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Which of the following species is iso-electronic with Cr?
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The IUPAC name of an element with atomic number 119 is
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Which of the following represents the correct order of metallic character of the given elements?
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The correct order of the metallic character of the elements Be,Al,Na,K is
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
Which of the following does not exist?
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Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The IUPAC symbol for the element with atomic number 119 would be:
EASY
Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronic Configurations and Types of Elements
The 71st electron of an element X with an atomic number of 71 enters the orbital: