You have information about a particle that contains 7 protons, 8 neutrons, and 8 electrons. Which of the following statements would be true?
A) It has an atomic weight of 23.
B) It is an ion.
C) It has 8 electrons in its outermost shell.
D) It has an atomic number of 15.
B
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Name four ways roots benefit a plant.
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A region where neurotransmitter molecules stimulate a neuron is indicated by the letter _____
a. A b. B c. C d. D e. C and D
The peptide bond is _____.
A. a hydrogen bond B. an ionic bond C. a covalent bond D. a van der Waals interaction E. none of the above