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5 cards from this section. Quick, good the night before a test.
What is an atom?
Think about the basic building blocks of everything around us.
What charge does a proton have?
Remember 'P for Positive'!
What is the smallest particle of an element that retains its chemical properties?
Think about what makes up everything around you.
Is the mass number the sum of protons and electrons?
Consider what particles contribute to mass.
Given an atom with 6 protons and 7 neutrons, determine its mass number and identify the element.
Remember, mass number is the sum of protons and neutrons.
If a nitrogen atom has a valency of 3, how many electrons does it have in its outermost shell and how many additional electrons will it need to complete its octet?
Use the Octet Rule to guide your answer.
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