What is the atomic number of Oxygen?
Unit 1 Chemistry Final Exam Review

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Chemistry
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
8
2.
FLASHCARD QUESTION
Front
How many neutrons does an Oxygen atom have?
Back
8
3.
FLASHCARD QUESTION
Front
What must a neutral atom have if it has 12 protons?
Back
12 electrons
4.
FLASHCARD QUESTION
Front
What is the term for the energy needed to remove the outermost electron from an atom?
Back
Ionization energy
5.
FLASHCARD QUESTION
Front
Which element is least likely to conduct heat and electricity?
Back
Oxygen (O)
6.
FLASHCARD QUESTION
Front
What is the mass number of an atom?
Back
The sum of protons and neutrons in the nucleus.
7.
FLASHCARD QUESTION
Front
What are the three main subatomic particles?
Back
Protons, neutrons, and electrons.
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