6. Oxygen has an atomic number of 8. What can you conclude from this fact? a. An atom of oxygen weighs 8 grams.

Question

6. Oxygen has an atomic number of 8. What can you

conclude from this fact?

a. An atom of oxygen weighs 8 grams.

b. An atom of oxygen has 4 protons and 4 electrons.

c. An atom of oxygen has 8 positrons.

d. An atom of oxygen has 8 protons.

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Ngọc Diệp 4 years 2021-07-31T18:28:00+00:00 1 Answers 50 views 0

Answers ( )

  1. trucchi
    0
    2021-07-31T18:29:23+00:00
    Reply

    Answer:

    Explanation:

    Oxygen has an atomic number of 8,

    Then, it has eight electrons revolving round its nucleus.

    And since it a neutral atoms.

    Number of neutron ≈ number of electron

    Number of proton = Number of electron.

    Then, the number of proton is 8

    So, we can find it mass number of molecular weight

    Molecular weight = number of proton + number of neutron

    Molecular weight = 8 + 8

    Molecular weight = 16g/mol

    So, the correct answer is D

    An atom of oxygen has 8 protons.

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