A Particular Nucleus of the Element Erbium Contains 68 Protons

question 100

Multiple Choice

A particular nucleus of the element erbium contains 68 protons and 90 neutrons. What is the total charge of the erbium nucleus?

• A) zero
• B) 1.4 × 10^-17 C
• C) 2.5 × 10^-17 C
• D) 1.1 × 10^-17 C
• E) 3.5 × 10^-18 C

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