The atomic number is equal to # of protons while the mass # is equal to the # protons + # of neutrons. If we have 65 as mass # and 35 as # of neutrons, 65-35 = 30 protons.
Be sure to answer all parts.
One isotope of a metallic element has the mass number 65 and 35 neutrons in the nucleus. The cation derived from the isotope has 28 electrons.
What is the atomic number?
Write the atomic symbol for this element.
What is the charge of this species?
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