Which of the following is true of oxygen that has 8 protons, 8 neutrons, and 8 electrons?      A. It has a charge of

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter2: Chemistry Of Life
Section: Chapter Questions
Problem 2RQ: Magnesium has an atomic number of 12. Which of the following statements is true of a neutral...
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1. Which of the following is true of oxygen that has 8 protons, 8 neutrons, and 8 electrons?
 
  
A. It has a charge of +8.
B. It has a mass number of 8.
C. It has an atomic number of 8.
D. It has atomic number of 16. 
 
2. Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by all forms of life?
  
A. arsenic
B. iodine
C. mercury
D. iron 
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