Sign Up

Continue with Facebook
Continue with Google
or use

Have an account? Sign In Now

Sign In

Continue with Facebook
Continue with Google
or use

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask question.

Continue with Facebook
Continue with Google
or use

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Ansfind

Ansfind Logo Ansfind Logo Ansfind Logo Ansfind Logo
Add question

Ansfind Navigation

  • About Us
  • Groups
    • Add group
Search
Add Question

Mobile menu

Close
Ask a Question
  • Home
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Hot Questions
  • Polls
  • Tags
  • Points
  • Users
  • FAQs
  • Help
  • Contact Us
Home/ Questions/Q 5486
Answered
Ramesh RTN
Ramesh RTN
Asked: July 30, 20212021-07-30T08:07:34+05:30 2021-07-30T08:07:34+05:30In: Science

Explain with example mass number

explain with example mass number. where we use mass numbers and how to identify them?

chemistry questionsmass number
  • 1
  • 33
  • 24
  • Share
    • Share on Facebook
    • Share on Twitter
    • Share on LinkedIn
    • Share on WhatsApp
Answer

    Related Questions

    • What is the product of the following reaction? ROH H2SO4 R'OH OH
    • How To Draw Lewis structure of SCL4?
    • How many valence electrons does nitrogen have?

    3 Answers

    • Voted
    • Oldest
    • Recent
    1. Best Answer
      Raj j
      2021-07-30T08:15:07+05:30Added an answer on July 30, 2021 at 8:15 am

      The mass number (symbol A) is the total number of protons and neutrons in an atom’s nucleus. To find the mass number, you count the number of protons (A) and then subtract the number of neutrons (A). For example: A carbon atom has 6 protons and 6 neutrons. Its mass number is 12.

      A carbon atom has 6 protons and 6 neutrons, so its mass number is 12.

      The atomic number (symbol Z) is the number of protons in an atom’s nucleus. To find the atomic number, you count the number of protons (Z) and then add 1. For example: A carbon atom has 6 protons and 6 neutrons, so its atomic number is 7.

      The atomic weight (symbol W) of an element is the sum of the mass of its naturally occurring isotopes. The atomic weights of natural isotopes are weighted by their relative abundances in the Earth’s crust, with the isotope of lowest abundance being given a weighting of one and others being proportional to their natural abundance. The exception is for hydrogen, which is not present as a free element in nature.

      • 2
      • Reply
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
    2. Dayana
      2021-07-30T08:08:41+05:30Added an answer on July 30, 2021 at 8:08 am
      • Mass number is a number that is used to identify the mass of an atom or molecule.
      • Mass number is the mass of the isotope relative to 1/12th of the mass of carbon-12. For example, if an atom has a mass number of 12, it has twelve protons and twelve neutrons in its nucleus.
      • The Mass Number can be found by dividing the atomic weight by its atomic number.
      • 0
      • Reply
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
    3. Dayana
      2021-07-30T08:12:29+05:30Added an answer on July 30, 2021 at 8:12 am
      • A. Mass number is the total number of protons and neutrons in an atom.
      • To find the mass number, take the atomic number and subtract the atomic weight.
      • Example: Carbon atom with 12 protons and 12 neutrons has a mass number of 12.
      • 0
      • Reply
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
    Leave an answer

    Leave an answer
    Cancel reply

    Browse

    Choose from here the video type.

    Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

    Sidebar

    Top Users

    Weboptify

    Weboptify

    • 3,510 Points
    Wish Lay

    Wish Lay

    • 2,470 Points
    SaRa

    SaRa

    • 2,459 Points
    Professor

    Adv 250x250

    • About Us
    • Home
    • Communities
    • Polls
    • Tags
    • Points
    • Users
    • Help
    • Contact Us
    • Referrals
    • Policies
      • Privacy policy
      • Terms of use
    Revenue

    © 2022 Ansfind. | Designed by Weboptify

    monetization_on Earn category Spaces home Home emoji_events Points
    search Search
    help Add

    Insert/edit link

    Enter the destination URL

    Or link to existing content

      No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.