Question

An atom or ion has 42 neutrons, 36 protons, and 36 electrons. Identify the element symbol, and determine the mass number and charge for this atom or ion.

Answer 1

Explanation:

Element - Krypton

Symbol - Kr

Mass - 83.8amu

charge - none

Answer 2

CORRECT QUESTION: An atom or ion has 48 neutrons, 36 protons, and 36 electrons.

• Now, since the number of protons is equal to the number of electrons, the atom is neutral.

• Also, the atomic number of the atom will be 36 (atomic number is equal to number of protons)

• Secondly, the mass number will be 36 + 48 = 84. (AS MASS NUMBER = NUMBER OF PROTON + NEUTRON)

• This element is KYPTON.

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