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Electron configuration of sodium and Sodium ion

Sodium is denoted by the letter Na and its atomic number is 11. The number of electrons in Sodium is 11. This post we will checking Electron configuration of sodium and Electron configuration of sodium ion Electron configuration of Sodium Electron configuration is the Arrangement of electrons in different orbitals of an atom. The electronic


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Prime numbers : Definition, Examples, List, Co Prime

Prime Numbers

A prime number can be divided, without a remainder, only by itself and by 1. For example, 19 can be divided only by 19 and by 1.

Interesting facts about prime
•The only even prime number is 2. All other even numbers can be divided by 2.
•If the sum of a number’s digits is a multiple of 3, that number can be divided by 3.
•No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.
•Zero and 1 are not considered prime numbers.
•Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.

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Class 11 physics sample paper with solutions

Welcome to our webpage dedicated to providing Class 11 physics students with sample papers and solutions. On this page, you will find a variety of questions and answers, all prepared according to the CBSE Class 11 physics syllabus. PDF download of this sample paper is also available. This website offers a sample paper for class


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