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Introduction to Noble Gases

What is the m...

Question

What is the main characteristic of the last element in each period of the Periodic Table? What is the general name of such elements?

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Solution

The main character of the last element of a periodic table in their outermost shells is completely filled by either two or $8$ electron. These elements are known as inert gases.

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(a) What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?

(b) What is the number of elements in (a) 1st period, and (b) 3rd period, of the modern periodic table?

Q. The characteristic of the last elements in the periods of a periodic table:

Q. Name the four types of elements of the periodic table based on the electronic configuration. Write one characteristic of each type.

Q. Four new elements, all super-heavy residing near the bottom of the periodic table, have been given proper names at last. One of these elements in Moscovium (Mc). What its atomic number?

Q. (a) What is a group in the periodic table? In which part of a group would you separately expect the elements to have (i) the greatest metallic character (ii) the largest atomic size?
(b) In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group.
(c) From the standpoint of atomic structure, what determines which element will be the first and which the last in a period of the periodic table?
(d) Explain why, the properties of elements are repeated after 2, 8, 18 and 32 elements in the periodic table.
(e) What are the advantages of the periodic table?

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