Question

compare and contrast the arrangements of element in Maldives periodic table and Mosleys morden periodic table
any five
​

Answer 1

answr

LOGIN

JOIN NOW



What would you like to ask?

11th

Chemistry

Classification of Elements and Periodicity in Properties

Modern Periodic Law and Periodic Table

Compare and contrast the ar...

CHEMISTRY

Asked on November 22, 2019 byShreyali Punitha

Compare and contrast the arrangement of elements in Mendeleev's periodic table and the Modern periodic table.

MEDIUM

Share

Study later

VIDEO EXPLANATION



ANSWER

 Mendeleev's periodic table

 Modern periodic table

 1. Elements were arranged in increasing order of atomic   masses.  1. Elements are arranged in increasing order of atomic numbers. 2. There are 8 groups.  2. There are 18 groups. 3. Each group is divided into subgroups a and b.  3. Groups are not divided into subgroups. 4. The group for noble gases was not present, as noble gases were not discovered at that time.  4. A separate group, i.e. group 18 is present for noble gases. 5. There was no place for isotopes.  5. This problem was rectified, as slots are determined on the basis of atomic number.