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- 1. Multiple Choice
What is an element?
Two or more atoms joined together.
One of over 100 types of atoms
Two or more different elements joined together.
A particle with no charge found in the nucleus of an atom.
- 2. Multiple Choice
What is a molecule?
two elements bonded together (sharing electrons)
a mixture of different substances
smallest individual particles
salt mixed in water
- 3. Multiple Choice
What is a compound?
Two different elements bonded together.
Two of the same elements bonded together.
A mixture of different substances.
Two substances stuck together with glue.
- 4. Multiple Choice
What two subatomic particles are found in the nucleus?
proton and electron
electron and neutron
neutron and proton
neutron and electron
- 5. Multiple Choice
Which of the following is a chemical formula?
H2SO4
Si
Hg
C
- 6. Multiple Choice
Which of the following is a chemical symbol?
H2O
O
NaCl
FeO
- 7. Multiple Choice
What is the chemical symbol for the element mercury?
Hg
Merc
MeC
MY
- 8. Multiple Choice
What is an ion?
a charged atom
an atom with different neutrons
atoms with no protons
atoms with no electrons
- 9. Multiple Choice
Where are electrons found?
the nucleus
next to the neutrons
the proton
orbiting the nucleus
- 10. Multiple Choice
Which correctly describes the smallest amount of an element?
Atom
Molecule
Compound
Proton
- 11. Multiple Choice
How would O2 be qualified. Check all answers that apply.
Atom
Molecule
Compound
- 12. Multiple ChoiceWhat do you call the 2 in 3CO2?CoefficientSubscriptElementSmall
- 13. Multiple ChoiceWhat do you call the 3 in 3CO2?CoefficientSubscriptCompound Number
- 14. Multiple ChoiceHow many total atoms are there in 2HNO3?26810
- 15. Multiple Choice
Explain the difference between an atom and a molecule.One molecule is made of one atom.One molecule is always made of different particles.One molecule is made of more than one atom.One molecule is made of more than two atoms. - 16. Multiple ChoiceElements are made ofmany types of atomsthe periodic tableone type of atommolecules
- 17. Multiple ChoiceWhat are the 3 particles that make-up the atom?protons, neutrons, and isotopesneutrons, isotopes, and electronspositives, negatives, and electronsprotons, neutrons, and electrons
- 18. Multiple ChoiceWhat is the total number of atoms in an ammonia (NH3) molecule?1234
- 19. Multiple ChoiceCarbon dioxide (CO2) contains how many atoms of oxygen?0123
- 20. Multiple ChoiceWhat is this?CompoundElementMixture of elementsMixture of compounds
- 21. Multiple ChoiceWhat are these?MoleculesCompounds
- Answer choicesTagsAnswer choicesTags