Exercise

Author:Embibe Experts

Embibe Experts Science Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Periodic Classification of Elements from Science Crash Course (Based on Revised Syllabus-2023). Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

MEDIUM
10th Maharashtra Board
IMPORTANT

What are the types of matter? 

MEDIUM
10th Maharashtra Board
IMPORTANT

Write the name and symbol of the atom having the smallest atomic mass.

EASY
10th Maharashtra Board
IMPORTANT

According to IUPAC recommendations, the number of groups in the long form of the periodic table is

EASY
10th Maharashtra Board
IMPORTANT

Noble gases were known at the time of Mendeleev's classification.

MEDIUM
10th Maharashtra Board
IMPORTANT

What is the difference between the molecules of elements and compounds?

HARD
10th Maharashtra Board
IMPORTANT

Prepare the biographical notes of scientists related to the classification of elements. 

MEDIUM
10th Maharashtra Board
IMPORTANT

What are the values of ‘n’ for the shells K, L and M?

MEDIUM
10th Maharashtra Board
IMPORTANT

Identify Dobereiner’s triads from the following groups of elements having similar chemical properties.
1. Mg (24.3), Ca (40.1), Sr (87.6)

2. S(32.1), Se(79.0), Te(127.6)

3. Be(9.0), Mg(24.3), Ca(40.1)