Multiple Choice
The average oxygen atom has a mass number of 16 and an atomic number of 8. This means that the number of neutrons in this oxygen atom is:
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2. Chemistry
Atoms- Smallest Unit of Matter
Back2. Chemistry
Atoms- Smallest Unit of Matter
- Multiple Choice
How many valence electrons does an atom with five total electrons have?
5724views74rank - Multiple Choice
Which of the following is true about electron energy shells?
5250views72rank - Multiple Choice
A neon atom (Ne) is unreactive for which of the following reasons?
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How many electrons does an Oxygen atom need to fulfill the octet rule by filling its valence shell?
5196views87rank2comments - Multiple ChoiceWhat is generally true about essential elements and living organisms?2819views1rank
- Multiple ChoiceThe number of protons in an uncharged atom __________.2003views
- Multiple ChoiceWhich of the following subatomic particles has appreciable mass but no charge?1552views2rank
- Multiple ChoiceWhich of the following has negligible mass?2270views1rank
- Multiple ChoiceWhat are the four most abundant elements found in living systems?2313views
- Multiple ChoiceWhich of the following is a trace element?2087views
- Multiple ChoiceIf you were told that concentrations of trace elements above what is required by organisms generally have no effect on those organisms, what would you say?1416views
- Multiple ChoiceThere are __________ naturally occurring elements.2013views
- Multiple ChoiceAn element has eight protons, nine neutrons, and eight electrons. Its atomic number and atomic mass, respectively, are __________.2472views
- Multiple ChoiceAn uncharged atom of nitrogen (atomic number = 7) has __________.1693views