Advertisements
Advertisements
Question
Use the periodic table to answer the following question.
Identify an element that would tend to gain two electrons.
Advertisements
Solution 1
An element is likely to gain two electrons if it needs only two electrons to attain the stable noble gas configuration. Thus, the general electronic configuration of such an element should be ns2 np4. This is the electronic configuration of the oxygen family.
Solution 2
Element belonging to oxygen family (group 16) e.g., oxygen.
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 lose two electrons.
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
Write the outer electronic configuration of the following using the orbital notation method. Justify.
Po (belongs to period 6 and group 16)
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.
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?
Answer the following question.
For s-block and p-block elements show that the number of valence electrons is equal to its group number.
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
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?
Justify the given statement with suitable examples— “the Properties of the elements are a periodic function of their atomic numbers”.
The electronic configuration of Pt (atomic number 78) is ______.
E.N. of Si is ______. (Covalent radius of Si = 1.175 Å)
\[\ce{_92U^235}\] is a member of VI B group. The new element formed by the emission of α-particle will be a member of ______ group.
