tomaraa41 tomaraa41

09-12-2019
Chemistry

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what happens to the atomic mass of an element moving from left to right within a period

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zacharyjarquette zacharyjarquette

09-12-2019

Answer:

As you move across a period, the atomic mass increases because the atomic number also increases. ... The atomic mass for any given atom mainly comes from the mass of the protons and neutrons.

Explanation:

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