EXAM PRACTICE

Author:Shikha Goel & Saleha Parvez

Shikha Goel Chemistry Solutions for Exercise - EXAM PRACTICE

Simple step-by-step solutions to EXAM PRACTICE questions of Atomic Structure and Chemical Bonding from All In One ICSE Chemistry. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from EXAM PRACTICE with Hints & Solutions

EASY
9th ICSE
IMPORTANT

Answer the following questions. What is the electronic configuration of sodium ? (Na=11)

EASY
9th ICSE
IMPORTANT

Answer the following questions. Which isotope of uranium is used in nuclear fuel?

EASY
9th ICSE
IMPORTANT

Answer the following questions.

What is an octet? How do elements reach an octet?

MEDIUM
9th ICSE
IMPORTANT

Make a schematic atomic structure of magnesium and phosphorus.

(Given number of protons of magnesium =12 and that of phosphorus=15 )

EASY
9th ICSE
IMPORTANT

Write down the electronic configuration of first four elements in the periodic table mentioning their energy levels.

EASY
9th ICSE
IMPORTANT

Answer the following question:

State the three observations made by Rutherford on his α-particle scattering experiment.

EASY
9th ICSE
IMPORTANT

Answer the following question:

Write the electronic configuration of an element whose mass number is 31 and atomic number is 15. What is its valency ?

EASY
9th ICSE
IMPORTANT

How are the electrons distributed in different orbits (Shells)?