Advertisements
Advertisements
Question
Answer the following.
La belongs to group 3 while Hg belongs to group 12 and both belong to period 6 of the periodic table. Write down the general outer electronic configuration of the ten elements from La to Hg together using the orbital notation method.
Solution
- La and Hg both belong to period 6. Therefore, n = 6.
- Elements of group 3 to group 12 belong to the d-block of the modern periodic table.
- The general outer electronic configuration of the d-block elements is ns0-2 (n – 1)d1–10
- Therefore, the outer electronic configuration of all ten elements from La to Hg is as given in the table below.
Element Outer electronic configuration La 5d16s2 Hf 5d26s2 Ta 5d36s2 W 5d46s2 Re 5d56s2 Os 5d66s2 Ir 5d76s2 Pt 5d96s1 Au 5d106s1 Hg 5d106s2
APPEARS IN
RELATED QUESTIONS
Write the atomic number of the element present in the third period and a seventeenth group of the periodic table.
Use the periodic table to answer the following question.
Identify an element that would tend to gain two electrons.
Use the periodic table to answer the following question.
Identify the group having metal, non-metal, liquid as well as gas at room temperature.
Assign the position of the element having an outer electronic configuration in the periodic table.
ns2 np4 for n = 3
Assign the position of the element having an outer electronic configuration in the periodic table.
(n - 1)d2 ns2 for n = 4
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
In which group and period of the periodic table the element is placed?
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 be the most acidic?
Consider the oxides Li2O, CO2, B2O3.
Give the formula of an amphoteric oxide.
The first ionisation enthalpies of \[\ce{Na, Mg, Al}\] and \[\ce{Si}\] are in the order:
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) \[\ce{Ti^{4+}, Ar, Cr^{3+}, V^{5+}}\]
An element belongs to 3rd period and group-13 of the periodic table. Which of the following properties will be shown by the element?
(i) Good conductor of electricity
(ii) Liquid, metallic
(iii) Solid, metallic
(iv) Solid, non metallic
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?
How does the metallic and non-metallic character vary on moving from left to right in a period?
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 ______.
E.N. of Si is ______. (Covalent radius of Si = 1.175 Å)
The IUPAC nomenclature of an element with electronic configuration [Rn] 5f146d17s2 is ______.
