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Type: Open-Ended
Category: Periodic Table and Elements
Level: Grade 9
Score: 4
Tags: Atom
Author: monicalclark
Last Modified: 3 years ago

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Periodic Table and Elements Question

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Grade 9 Periodic Table and Elements

Boron has an atomic number of 5 and an atomic mass of 11. How many protons, neutrons, and electrons does boron have?
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