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- 1. Multiple ChoiceAll ____________ are made up of two or more atoms bonded together.atomsmoleculeselectronselements
- 2. Multiple ChoiceBonds between atoms in a molecule form as a result of the sharing of?formulaselectronsatomschemicals
- 3. Multiple ChoiceH2O2← ?
This number tells the number of atoms present.coefficientmoleculesubscriptatom - 4. Multiple Choice
What does this image represent?AtomElementCompound Molecule
Elemental Molecule
- 5. Multiple ChoiceWhat are the basic building blocks for all matter?atomselementscompoundschemicals
- 6. Multiple Choice
Which is an example of a elemental atom?
NaClH20O2CO - 7. Multiple ChoiceThe Atomic Number is the same as the number of:protonselectronsprotons and neutronselectron shells
- 8. Multiple ChoiceA subatomic particle that has a positive electric chargeProtonNeutronElectronIsotope
- 9. Multiple ChoiceA subatomic particle that orbits an atom's nucleus, has a negative charge, and has very little massProtonNeutronElectronIsotope
- 10. Multiple ChoiceAtoms that have the same number of protons but different numbers of neutrons.IsotopesNeutronProtonAtomic Mass
- 11. Multiple Choice
This forms when two or more different elements chemically combine.
monoatomic elements
elemental element
compound
- 12. Multiple Choice
This forms when one element is stable enough to stand alone without bonding to another element.
monoatomic element
elemental molecule
compound
- 13. Multiple Choice
How do covalent bonds form?
Donating & receiving valence e- between atoms.
Opposite slight charges attract each other between compounds.
Scientists are still not sure how they form.
Sharing valence electrons between atoms.
- 14. Multiple ChoiceAtoms are most stable when their outer shell is complete.truefalse
- 15. Multiple ChoiceHow are covalent bonds formed?Sharing of electronsTransfer of electrons
- 16. Multiple ChoiceWhat is a valence electron?The sum of neutrons and protons.The # of electrons in the last shell.A type of bond.A popular compound.
- 17. Multiple Choice
How many valence electrons does hydrogen have?
4
3
2
1
- 18. Multiple Choice
How many valence electrons does oxygen have?
2
3
6
4
- 19. Multiple Choice28313
- 20. Multiple Choice235
- 21. Multiple Choice
What is the difference between an elemental molecule and a compound molecule?
Elemental have different types of atoms bonded together, compound have the same type of atoms bonded together.
Elemental have the same type of atoms bonded together, compound have different types of atoms bonded together.
No difference
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