Are the following statements true or false?
a. Mendeleev was able to predict undiscovered elements.
b. The noble gases are chemically reactive under normal conditions.
Periodic Table is the classification or the arrangement of the elements in the tabular form on the basis of their physical and chemical properties. The 118 elements are divided into the blocks on the basis of the electronic configuration. These blocks are s-block, p-block, d-block, and f- block elements. s block elements are known as alkali and alkaline earth metals and d block elements are known as transition metals and f-block transition metals are inner transition metals.
Answer and Explanation: 1
a) Mendeleev was able to predict the undiscovered elements.
This statement is true as Mendeleev left the gaps in between the arrangement of the...
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fromChapter 3 / Lesson 1
Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and its properties.