No products in the cart.

  1. Homework Help
  2. CBSE
  3. Class 09
  4. Science

What is atomic number and mass …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now
What is atomic number and mass numer

    • Posted by Amir Amir 7 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Arnav Mehra 7 years, 11 months ago

    Atomic number is the number of protons an element has. Eg: Oxygen elent has 8 protons so its atomic number is 8. Mass number is the sum of the number of protons and neutrons in the atom an elemet. Eg: 1) Oxygen has 8 protons and 8 neutrons so its mass number is 16. 2) Argon has 18 protons and 22 neutrons so its mass number is 40.

    0Thank You

    ANSWER
    https://examin8.com Test

    Related Questions

    What are the parts of a flower

    • Posted by Op Garg 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers
    Assertion:Sun appears to rise in the east and set in the west Reason:The earth revolves around the sun in uniform circular motion

    • Posted by Tejal Sawant 2 months, 3 weeks ago

    CBSE > Class 09 > Science
    • 3 answers
    A boxer moves his head backward when his opponent blows a punch.

    • Posted by Prasanna Mendon 5 months ago

    CBSE > Class 09 > Science
    • 1 answers
    What is ER??

    • Posted by Maitri Patel 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers
    WHAT IS UNIT OF LIFE

    • Posted by Yash Dwivedi 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 3 answers
    Oil tankers containing oil ar not filled up to the brim Give reason

    • Posted by Moksh Bhatia 1 year, 5 months ago

    CBSE > Class 09 > Science
    • 0 answers
    Solid can't change its shape! What about a rubber band, can it's change its shape or stretching?Is it a solid?

    • Posted by Devi Manoj 1 year, 5 months ago

    CBSE > Class 09 > Science
    • 1 answers
    Why is it advised to tie any luggage kept on the roof of a bus with a rope ?

    • Posted by Huda Fatima 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers
    Define speed and velocity provide one similarity and one difference between them

    • Posted by Himanshi Sharma 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    If one mole of carbon atoms weighs 12 grams, what is the mass (in grams) of 1 atom of carbon?

    • Posted by Anmol Kumar 1 year, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2025