EASY
AP EAPCET
IMPORTANT
Earn 100

How many of the following statements is/are correct?
a) Mercury is the only metal that exists as liquid at room temperature.
b) Among non-metals, carbon has the highest melting point.
c) Hydrogen is the most abundant element in the universe.
d) Oxygen is the most abundant element in the earth's crust.

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Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
AP EAPCET
IMPORTANT
To which group of the periodic table does an element having electronic configuration [Ar]3d54 s2 belong?
MEDIUM
AP EAPCET
IMPORTANT
The element with outer electronic configuration (n-1)d2ns2, where n=4, would belong to
MEDIUM
AP EAPCET
IMPORTANT
Among the given configurations, identify the element which doesn't belong to the same family as the others?