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- 1. Multiple ChoiceThis particle is found in the nucleus and has no chargeNeutronProtonElectron
- 2. Multiple ChoiceThis particle is found in the nucleus and has a positive chargeElectronProtonNeutron
- 3. Multiple ChoiceThis is a negatively charged particle found outside the nucleusElectronProtonNeutron
- 4. Multiple ChoiceDescribe an Electron Cloud?the mist outside of an atomhome of the protonswhere electrons are locatednucleus
- 5. Multiple ChoiceAn atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.2010525
- 6. Multiple ChoiceMost of the mass of an atom is contained here.electron orbitalsnucleusshellsatomic #
- 7. Multiple Choice
An atom becomes _________ when it gains electrons.PositiveNegativeNeutralInvinsible - 8. Multiple ChoiceAn atom becomes _______ when it loses electrons.PositiveNegativeNeutralInvinsible
- 9. Multiple ChoiceHow many protons does this isotope of titanium have?48222670
- 10. Multiple ChoiceHow many neutrons does the isotope of lithium have?8345
- 11. Multiple ChoiceHow many neutrons does uranium-235 have?23892146143
- 12. Multiple ChoiceIn a correctly written symbol what would be located in the "A" position?number of neutronsatomic numbernumber of electronsmass number
- 13. Multiple Choice
which explanation of this notation is correct?
12 is the # of protons
6 tells you there are 6 neutrons
6 tells you there are 6 protons
12 is the # of electrons
- 14. Multiple ChoiceWhat quantities vary between isotopes of an element?protons, electrons, and atomic massprotons, electrons, and atomic numberneutrons and electronsneutrons and atomic mass
- 15. Multiple ChoiceWhat is the charge on a lithium atom that looses 1 electron?+10-1-2
- 16. Multiple Choice
Is the element shown in this image an ion, isotope or atom?
atom
isotope
positive ion
negative ion
- 17. Multiple ChoiceThe atomic mass is equal to _.the number of protons onlythe number of neutrons onlythe total number of protons and neutronsthe number of protons, neutrons, and electrons.
- 18. Multiple Choice
What is the net charge on the element shown above?
(Calcium - atomic number 20)
+1 charge
+2 charge
-1 charge
-2 charge
- 19. Multiple ChoiceWhat element is this? What is the mass number of this atom?sodium, 23magnesium, 23magnesium, 12sodium, 11
- 20. Multiple ChoiceWhich atom has 4 neutrons?Li-6Li-7Li-8they have the same # of neutrons
- 21. Multiple Choice
What charge does an atom have when it GAINS electrons?
Positive
Negative
Neutral
- 22. Multiple Choice
Which symbol is a representation of an ion?
Li
Na-22
O-2
- 23. Multiple Choice
What is the mass number of bromine?
35
45
80
79.904
- 24. Multiple Choice
How many electrons does this magnesium ion have?
24
12
10
14
- 25. Multiple Choice
An atom becomes charged when...
electrons are lost.
protons are added.
neutrons change.
- Answer choicesTagsAnswer choicesTags