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Use the periodic table to answer the following question. Identify an element with five electrons in the outer subshell. - Chemistry

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प्रश्न

Use the periodic table to answer the following question.

Identify an element with five electrons in the outer subshell.

लघु उत्तरीय

उत्तर

The electronic configuration of an element having 5 electrons in its outermost subshell should be ns2np3. This is the electronic configuration of the halogen group. Thus, elements in this group include nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).

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अध्याय 3: Classification of Elements and Periodicity in Properties - EXERCISES [पृष्ठ ९७]

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एनसीईआरटी Chemistry - Part 1 and 2 [English] Class 11
अध्याय 3 Classification of Elements and Periodicity in Properties
EXERCISES | Q 3.27 - (a) | पृष्ठ ९७

संबंधित प्रश्न

Write the atomic number of the element present in the third period and a seventeenth group of the periodic table.


Assign the position of the element having an outer electronic configuration in the periodic table.

(n - 2) f7 (n - 1)d1 ns2 for n = 6


Write the outer electronic configuration of the following using the orbital notation method. Justify.

Ge (belongs to period 4 and group 14)


Write the outer electronic configuration of the following using the orbital notation method. Justify.

Po (belongs to period 6 and group 16)


Write the outer electronic configuration of the following using the orbital notation method. Justify.

Cu (belongs to period 4 and group 11)


Answer the following question.

The electronic configuration of some element is given below:

1s2 2s2 2p6

In which group and period of the periodic table the element is placed?


Consider the oxides Li2O, CO2, B2O3.

Which oxide would you expect to be the most basic?


Consider the oxides Li2O, CO2, B2O3.

Which oxide would be the most acidic?


Consider the oxides Li2O, CO2, B2O3.

Give the formula of an amphoteric oxide.


The period number in the long form of the periodic table is equal to ______.


Which of the following sets contain only isoelectronic ions?

(i) \[\ce{Zn^{2+}, Ca^{2+}, Ga^{3+}, Al^{3+}}\]

(ii) \[\ce{K+ , Ca^{2+}, Sc^{3+}, Cl-}\]

(iii) \[\ce{P^{3-}, S^{2-}, Cl- , K+}\]

(iv) \[\ce{Ti^{4+}, Ar, Cr^{3+}, V^{5+}}\]


Identify the group and valency of the element having atomic number 119. Also predict the outermost electronic configuration and write the general formula of its oxide.


How would you explain the fact that first ionisation enthalpy of sodium is lower than that of magnesium but its second ionisation enthalpy is higher than that of magnesium?


Justify the given statement with suitable examples— “the Properties of the elements are a periodic function of their atomic numbers”.


Write down the outermost electronic configuration of alkali metals. How will you justify their placement in group 1 of the periodic table?


The electronic configuration of Pt (atomic number 78) is ______.


The IUPAC nomenclature of an element with electronic configuration [Rn] 5f146d17s2 is ______.


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