KatieCothren KatieCothren

02-10-2017
Biology

contestada

1. Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?

a. isotope number

b. atomic number

c. atomic mass unit

d. mass number

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caleb0mcbrearet caleb0mcbrearet

02-10-2017

d. mass number is the anwer or it could also be atomic number i think it is actually b

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