Concept explainers
(a)
Interpretation:
Element
Concept Introduction:
Elements are arranged in Periodic table according to their
Periods are numbered from 1 to 7 and it is from top to bottom in Periodic table. Groups are numbered from left to right. The Group numbers are given as 1A, 2A, 3B to 8B, 1B, 2B, 3A to 8A.
The elements that are present in Group with A are known as representative elements while Group with B is known as
(b)
Interpretation:
Iron is a representative element, transition element or an inner transition element has to be identified from its position in periodic table.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Element
Concept Introduction:
Refer part (a).
(d)
Interpretation:
Europium is a representative element, transition element or an inner transition element has to be identified from its position in periodic table.
Concept Introduction:
Refer part (a).
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Chemistry: Principles and Practice
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