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Atoms, Molecules, and Periodic Table Flashcards | StudBud
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Atoms, Molecules, and Periodic Table
Atoms, Molecules, and Periodic Table
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An assessment of student knowledge of atom/molecule lesson.
Flashcards
8 cards
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Practice quiz
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Questions
8
Answers
1
To calculate the number of neutrons in a element (atom), you must?
subtract atomic number from atomic mass
add the electrons and protons
subtract protons from the atomic mass
subtract protons from neutrons
2
The mass of an atom comes mainly from its _____________.
group number
protons and neutrons
electrons
nucleus
3
Carbon Dioxide is a compound of what two elements?
Hydrogen and Helium
CO2
Hydrogen and Oxygen
Carbon and Oxygen
4
Water (H2O) consist of how many atoms?
2
4
3
1
5
The three main subatomic particles of an atom are?
protons, neutrons, electrons
element, compound, molecule
atoms, nucleus, mass
positive, negative, neutral
6
The least number of an element on the Periodic Table (usually on top) is called_____________.
nucleus
the atomic #
the mass #
protons
7
Table salt is Na + Cl = NaCl. How many atoms are in NaCl?
3
1
0
2
8
Atoms combine (bond) to form______________
Periodic Table
water
compounds (or molecules)
elements
