shaalaa.com
S

Solution - Position of Elements and Trends in the Modern Periodic Table

Account
User


Login
Register


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty
ConceptPosition of Elements and Trends in the Modern Periodic Table  

Question

How do the atomic size and metallic character of elements vary as we move :-

(a) down a group and

(b) from left to right in a period

Solution

You need to to view the solution
Is there an error in this question or solution?

Question appears in these question papers

Similar questions

List any two properties of the elements belonging to the first group of the modern periodic table.

view solution

Which element has twice as many electrons in its second shell as in its first shell?

view solution

Elements in the same group show the same valency. Give scientific reason.

view solution

Taking the example of an element of atomic number 16, explain how the electronic configuration of the atom of an element relates to its position in the modern periodic table and how valency of an element is calculated on the basis of its atomic number.

view solution

The position of eight elements in the Modern Periodic Table is given below where atomic numbers of elements are given in the parenthesis.

Period No.

2Li(3)Be(4)
3Na(11)Mg(12)
4K(19)Ca(20)
5Rb(37)Sr(38)

(i) Write the electronic configuration of Ca.

(ii) Predict the number of valence electrons in Rb.

(iii) What is the number of shells in Sr?

(iv) Predict whether K is a metal or a non – metal.

(v) Which one of these elements has the largest atom in size?

(vi) Arrange Be, Ca, Mg and Rb in the increasing order of the size of their respective atoms.

view solution
S