Ask Question
27 August, 01:25

We can represent atoms by listing the number of protons, neutrons, and electrons-for example, 2p, 2n, 0, 2e - for helium. Which of the following represents the 18O isotope of oxygen? a. 6p+, 8n0, 6e-b. 8p+, 10n0, 8e-c. 9p+, 9n0, 9e-d. 7p+, 2n0, 9e-e. 10p+,8n0, 9e-

+2
Answers (1)
  1. 27 August, 01:41
    0
    B. 8 e-, 8p+, 10n0

    Explanation:

    For the Oxygen-18 isotope,

    Mass number = atomic number + number of neutron

    For an electrically neutral atom, the number of proton is the atomic number.

    Mass number = number of proton + number of neutron

    The mass of proton is the same as the mass of neutron but the mass of a electron is negligble.

    For isotopes, atoms with the same atomic number but different neutron numbers, hence different mass numbers.

    Mass number of O-18 = 18

    Atomic number of oxygen = 8

    Number of neutron = 18 - 8

    = 10

    Number of proton = 8

    Number of electron = 8

    Therefore, 8 e-, 8p+, 10n0
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “We can represent atoms by listing the number of protons, neutrons, and electrons-for example, 2p, 2n, 0, 2e - for helium. Which of the ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers