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Question
Which element was placed before iodine in Mendeleev periodic table is.
Which element was placed before iodine in Mendeleev periodic table is.
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Solution
The correct option is C Tellurium
Mendeleev periodic table:
- In Mendeleev, periodic table elements were arranged based on increasing atomic mass.
- During Mendeleev, only 63 elements were known so after studying the properties of elements he arranged them into vertical columns called groups, and horizontal rows are called periods.
- During the arrangement, there were seven periods and eight groups in Mendeleev's periodic table.
The explanation for the correct option :
(A) Tellurium: In Mendeleev, the periodic table Tellurium is placed in the 6th group and 5th-period having an atomic mass of 127.60 and is placed before Iodine.
Thus, the Tellurium element was placed before iodine in Mendeleev periodic table.
Tellurium
Mendeleev periodic table:
- In Mendeleev, periodic table elements were arranged based on increasing atomic mass.
- During Mendeleev, only 63 elements were known so after studying the properties of elements he arranged them into vertical columns called groups, and horizontal rows are called periods.
- During the arrangement, there were seven periods and eight groups in Mendeleev's periodic table.
The explanation for the correct option :
(A) Tellurium: In Mendeleev, the periodic table Tellurium is placed in the 6th group and 5th-period having an atomic mass of 127.60 and is placed before Iodine.
Thus, the Tellurium element was placed before iodine in Mendeleev periodic table.
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