English
Maharashtra State BoardSSC (English Medium) 10th Standard

Select the appropriate options and complete the following paragraph: (metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block). On the basis of electronic configuration,

Advertisements
Advertisements

Question

Select the appropriate options and complete the following paragraph:

(metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block).

On the basis of electronic configuration, elements in the modern periodic table are classified Into ______ blocks. Groups 1 and 2 elements are included in ______ and all these elements are metals. (except Hydrogen). Group 13 to 18 elements are included in ______. This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in ______ and all the elements are ______ elements shown at the bottom of the periodic table i.e. Lanthanides and Actinides constitute ______ and all these elements are metals.

Fill in the Blanks
Short Answer
Advertisements

Solution

On the basis of electronic configuration, elements in the modern periodic table are classified Into four blocks. Groups 1 and 2 elements are included in s-block and all these elements are metals. (except Hydrogen). Group 13 to 18 elements are included in p-block. This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in d-block and all the elements are metals elements shown at the bottom of the periodic table i.e. Lanthanides and Actinides constitute f-block and all these elements are metals.

shaalaa.com
  Is there an error in this question or solution?
2023-2024 (March) Official

RELATED QUESTIONS

What is periodicity in properties of elements with reference to the Modern Periodic Table? 


How were the positions of isotopes of an element decided in the modern periodic table?


Explain why, the noble gases are placed in a separate group.


Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?


The three elements having chemical symbols of Si, B and Ge are:

(a) all metals
(b) all non-metals
(c) all metalloids
(d) Si is metalloid, B is metal and Ge is non-metal


What is the usual number of valence electrons in the atoms of the last element in a period?


 Explain why All the elements of a group have similar chemical properties.


On the basis of electronic configuration, how will you identify chemically similar elements?


What is the usual number of valence electrons and valency of group 18 elements of the periodic table?


Give the group number of following elements present in periodic table


Name two elements in Inert gas.


Name the type of elements which have outermost shell complete.


Name the type of elements which have outermost shell incomplete.


An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.

Is it larger or smaller than caesium (Cs)?


How will the tendency to gain electrons change as we go from left to right across a period? Why?

 


What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?


State the modern periodic law.


From the standpoint of atomic structure, what determines which elements will be the first and which the last in a period of the periodic table?


Name the cation and the anion in the salt – calcium sulphate


Give the symbol and valency of the following element and radical.

Zinc


Give the symbol and valency of the following element and radical.

Sulphur [Sulphide]


Give the symbol and valency of the following element and radical.

Nitrate


Give the symbol and valency of the following element and radical.

Sulphite


Give the chemical formula of sodium hydroxide


Give the chemical formula of calcium phosphate


Fill in the blank:

The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.


State the number of elements in Period 2 of the Periodic Table.


Compare Modern Periodic Law with Mendeleev's Periodic Law.


The d-block elements are called as _______ elements.


To the left of the zig-zag line in the periodic table are the metal elements.


The scientist who propounded the modern periodic law is ______.


Which of these belong to the same period?

Element A B C
Atomic number 2 10 5

Compare the radii of two species X and Y. Give reasons for your answer.

  1. X has 12 protons and 12 electrons
  2. Y has 12 protons and 10 electrons

Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.

It has same valency as Lithium.


  1. Write the electronic configuration of element X, given by its symbol as under: \[\ce{^40_20 X}\]
  2. Determine its position in the modem periodic table.
  3. What is the nature of its oxide?
  4. Name one other element of its group.

Define periods of modern periodic table.


Match the atomic number with the following:

An element of group 2.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×