MEDIUM
7th CBSE
IMPORTANT
Earn 100

Science Application: An atom consists of charged particles called electrons and protons. Each proton has a charge of +1 and each electron has a charge of -1  Remember number of electrons is equal to number of protons, while answering these questions:

What is the charge on an atom?

Chapter-Wise 3D Mathematics Videos from NCERT NCERT Exemplar Mathematics - Class 7

Product of Two Negative Integers
02 min 55 sec

Product of Two Negative Integers

In this video, you will explore the multiplication of negative integers in detail and learn why the product of two negative integers is always positive. Watc...
Subtraction of Integers Using Absolute Values
02 min 39 sec

Subtraction of Integers Using Absolute Values

Do you want to explore how to subtract integers using the absolute value? This video will help you understand this method of subtraction of integers using si...
Order of Numbers
04 min 46 sec

Order of Numbers

Ordering numbers! Do you know what that means? Hey 3 and 7, come here! No, it's not that kind of order! It is arranging numbers in ascending to descending or...