If an element has an atomic number 19, what is the element? If the mass number is 39, how many neutrons does it have? If it is a neutral ato

Question

If an element has an atomic number 19, what is the element? If the mass number is 39, how many neutrons does it have? If it is a neutral atom how many electrons does it have?​

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bonexptip 5 years 2021-08-18T01:14:18+00:00 2 Answers 22 views 0

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  1. Orla
    0
    2021-08-18T01:15:27+00:00
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    Answer:

    1) What is the element? Potassium

    2) how many neutrons does it have? 20

    3) If it is a neutral atom how many electrons does it have?​ 39

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  2. diemkieu
    0
    2021-08-18T01:16:11+00:00
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    Answer:

    neutrons = 20

    Explanation:

    No. of Neutrons = Mass No. – Atomic No

    = 39 – 19

    =20

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