B. light reflects off of the t shirt and enters the human eye
Answer:
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Explanation:
For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
Answer: They are referred to as isotopes, which are a form of an element that has different numbers of neutrons in their nucleus.
