An atom has 20 protons and 22 neutrons and 18 electrons. The charge of this atom is: ________

Question

An atom has 20 protons and 22 neutrons and 18 electrons. The charge of this atom is: ________

in progress 0
Nem 5 years 2021-07-29T00:30:59+00:00 2 Answers 123 views 0

Answers ( )

  1. dangkhoa
    0
    2021-07-29T00:32:21+00:00
    Reply

    Answer:

    20 protons.

    Explanation:

    20 protons = 20 + charges

    18 electrons = 18 – charges

    The difference = 20 – 18 = +2

    The charge for this atom is plus 2

    It would be a calcium atom. This element is number 20 on the periodic table.

    Hope this helps!

  2. Dau
    0
    2021-07-29T00:32:39+00:00
    Reply

    Answer:

    the number of electrons should equal to the the number of protons in a neutral atom

    if there is a inequality between the numbers it means the atom has a + or – charge

    The charge of this atom=+(20–18)=+2

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )