Compare and contrast the arrangement of eleme | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(N/A) Mendeleev's Periodic TableModern Periodic Table$1$. Elements are arranged in the increasing order of their atomic masses.$1$. Elements are arran

Vedclass · Accepted Answer

Vedclass · Answer

(N/A) Mendeleev's Periodic TableModern Periodic Table$1$. Elements are arranged in the increasing order of their atomic masses.$1$. Elements are arranged in the increasing order of their atomic numbers.$2$. There are a total of $7$ groups and $6$ periods.$2$. There are a total of $18$ groups and $7$ periods.$3$. Elements with similar properties were placed in the same group.$3$. Elements with the same number of valence electrons are placed in the same group.$4$. The position of hydrogen was ambiguous.$4$. Hydrogen is placed in group $1$ above alkali metals.$5$. No clear distinction between metals and non-metals.$5$. Metals are on the left and non-metals are on the right.

Compare and contrast the arrangement of elements in Mendeleev's Periodic Table and the Modern Periodic Table.

Similar Questions

Why do you think the noble gases are placed in a separate group?

What were the limitations of Dobereiner's classification?

How could the Modern Periodic Table remove various anomalies of Mendeleev's Periodic Table?

Nitrogen (atomic number $7$) and phosphorus (atomic number $15$) belong to group $15$ of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?

Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Mendeleev's Periodic Table	Modern Periodic Table
$1$. Elements are arranged in the increasing order of their atomic masses.	$1$. Elements are arranged in the increasing order of their atomic numbers.
$2$. There are a total of $7$ groups and $6$ periods.	$2$. There are a total of $18$ groups and $7$ periods.
$3$. Elements with similar properties were placed in the same group.	$3$. Elements with the same number of valence electrons are placed in the same group.
$4$. The position of hydrogen was ambiguous.	$4$. Hydrogen is placed in group $1$ above alkali metals.
$5$. No clear distinction between metals and non-metals.	$5$. Metals are on the left and non-metals are on the right.