Advertisements
Online Mock Tests
Chapters
2: Introduction to Analytical Chemistry
3: Basic Analytical Techniques
4: Structure of Atom
5: Chemical Bonding
6: Redox Reactions
▶ 7: Modern Periodic Table
8: Elements of Group 1 and 2
9: Elements of Group 13, 14 and 15
10: States of Matter
11: Adsorption and Colloids
12: Chemical Equilibrium
13: Nuclear Chemistry and Radioactivity
14: Basic Principles of Organic Chemistry
15: Hydrocarbons
16: Chemistry in Everyday Life
![Balbharati solutions for Chemistry [English] 11 Standard chapter 7 - Modern Periodic Table - Shaalaa.com](/images/chemistry-english-11-standard_6:1ddd95908cb04440a83d42566c3337de.jpg "Balbharati solutions for Chemistry [English] 11 Standard chapter 7 - Modern Periodic Table")
Advertisements
Solutions for Chapter 7: Modern Periodic Table
Below listed, you can find solutions for Chapter 7 of Maharashtra State Board Balbharati for Chemistry [English] 11 Standard.
Balbharati solutions for Chemistry [English] 11 Standard 7 Modern Periodic Table Exercises [Pages 108 - 109]
Explain the following.
The elements Li, B, C, Be and N have the electronegativities 1.0, 2.0, 1.5, and 3.0, respectively on the Pauling scale.
Explain the following.
The atomic radii of Cl, I, and Br are 99, 133, and 114 pm, respectively.
Explain the following.
The ionic radii of FΘ and Na⊕ are 133 and 98 pm, respectively.
Explain the following.
13Al is a metal, 14Si is a metalloid and 15P is a nonmetal.
Explain the following.
Cu forms coloured salts while Zn forms colourless salts.
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.
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.
Ionization enthalpy of Li is 520 kJ mol-1 while that of F is 1681 kJ mol-1. Explain.
Answer the following.
Explain the screening effect with a suitable example.
Answer the following.
Why the second ionization enthalpy is greater than the first ionization enthalpy?
Answer the following.
Why the elements belonging to the same group do have similar chemical properties?
Answer the following.
Explain electronegativity and electron gain enthalpy. Which of the two can be measured experimentally?
Choose the correct option.
Consider the elements B, Al, Mg, and K predict the correct order of metallic character:
B > Al > Mg > K
Al > Mg > B > K
Mg > Al > K > B
K > Mg > Al > B
Choose the correct option.
In the modern periodic table, the period number indicates the:
atomic number
atomic mass
principal quantum number
azimuthal quantum number
Choose the correct option.
The lanthanides are placed in the periodic table at
left-hand side
right-hand side
middle
bottom
Choose the correct option.
If the valence shell electronic configuration is ns2np5, the element will belong to
alkali metals
halogens
alkaline earth metals
actinides
Choose the correct option.
In which group of elements of the modern periodic table are halogen placed?
17
6
4
2
Choose the correct option.
Which of the atomic number represent the s-block elements?
7, 15
3, 12
6, 14
9, 17
Choose the correct option.
Which of the following pairs is isoelectronic?
Na⊕ and Na
Mg2⊕ and Ne
Al3⊕ and B3⊕
P3Θ and N3Θ
Choose the correct option.
Which of the following pair of elements has similar properties?
13, 31
11, 20
12, 10
21, 33
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?
Answer the following question.
For the following pair, indicate which of the two species is of large size:
Fe2+ or Fe3+
Answer the following question.
For the following pair, indicate which of the two species is of large size:
Mg2+ or Ca2+
Answer the following question.
Select the smaller ion form the following pair:
K+, Li+
Answer the following question.
Select the smaller ion form the following pair:
N3–, F–
With the help of a diagram answer the questions are given below:
- Which atom should have smaller ionization energy, oxygen, or sulphur?
- The lithium forms +1 ions while beryllium forms +2 ions?
Define ionic radius
Define electronegativity
Answer the following question.
Compare chemical properties of metals and non-metals.
What are the valence electrons?
Answer the following question.
For s-block and p-block elements show that the number of valence electrons is equal to its group number.
Define ionization enthalpy.
Name the factors on which ionization enthalpy depends?
How does ionization enthalpy vary down the group and across a period?
How the atomic size vary in a group and across a period? Explain with suitable example.
Give reason.
Alkali metals have low ionization enthalpies.
Give reason.
Inert gases have exceptionally high ionization enthalpies.
Give reason.
Fluorine has less electron affinity than chlorine.
Give reason.
Noble gases possess relatively large atomic size.
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.
Solutions for 7: Modern Periodic Table
Balbharati solutions for Chemistry [English] 11 Standard chapter 7 - Modern Periodic Table
Shaalaa.com has the Maharashtra State Board Mathematics Chemistry [English] 11 Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Balbharati solutions for Mathematics Chemistry [English] 11 Standard Maharashtra State Board 7 (Modern Periodic Table) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Chemistry [English] 11 Standard chapter 7 Modern Periodic Table are Introduction of Periodic Table, Periodic Table and Electronic Configuration, Blockwise Characteristics of Elements, Periodic Trends in Elemental Properties, Structure of the Modern Periodic Table.
Using Balbharati Chemistry [English] 11 Standard solutions Modern Periodic Table exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Chemistry [English] 11 Standard students prefer Balbharati Textbook Solutions to score more in exams.
Get the free view of Chapter 7, Modern Periodic Table Chemistry [English] 11 Standard additional questions for Mathematics Chemistry [English] 11 Standard Maharashtra State Board, and you can use Shaalaa.com to keep it handy for your exam preparation.
