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- 1. Multiple Choice
What is the atomic number?
number of protons
number of neutrons
number of electrons and neutrons
number of proton and neutrons
- 2. Multiple ChoiceWhich statement best describes an electron?Smaller mass than a proton and a negative chargeSmaller mass than a proton and a positive chargeGreater mass than a proton and a negative chargeGreater mass than a proton and a positive charge
- 3. Multiple Choice
Which of the following subshell designations does not exist?
2d
2p
3s
3p
- 4. Multiple Choice
Identify the electron configuration of noble gas.
1s2 2s2 2p6
1s2 2s2
1s2 2s2 2p3
1s2 2s2 2p6 3s1
- 5. Multiple Choice
Oxygen’s atomic number is 8. This means that an oxygen atom must have8 electrons8 protons8 neutronsa mass number of 8 - 6. Multiple ChoiceWhat is the role of an electron in an atom?Electrons live inside the nucleus and carry a neutral charge.Electrons circle the nucleus and have a positive charge.Electrons circle the nucleus and have a negative charge.Electrons live inside the nucleus and have a negative charge.
- 7. Multiple ChoiceThe particles with no charge in an atom are the _______.electronsneutronsprotonsprotons and neutrons
- 8. Multiple ChoiceWhich particle has a positive charge?electronorbitalprotonneutron
- 9. Multiple Choice
What is found in the nucleus of an atom?
Protons
Electrons
Protons and Electrons
Protons and Neutrons
- 10. Multiple Choice
What is an atomic mass?
The total number of electrons in an atom
The total number of neutrons in an atom
The total number of protons and electrons in an atom
The total number of protons and neutrons in an atom
- 11. Multiple Choice
What is Electron Configuration?
A prediction on where an electron lives.
Changing an electron's form
Putting Electrons in a different place
Saying hi to an electron.
- 12. Multiple ChoiceWhat atom matches this electron configuration?
1s2 2s2 2p6 3s2NeonMagnesiumAluminumPotassium - 13. Multiple ChoiceThe electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is36810
- 14. Multiple ChoiceIdentify the Electron Configuration for Aluminum (Al)1s2 2s2 2p6 3s2 3p11s2 2s2 2p6 3s2 3p31s2 2s2 2p6 3s2 4p1
- 15. Multiple ChoiceHow many electrons can the s sublevel hold?141026
- 16. Multiple ChoiceHow many electrons can the p sublevel hold?141026
- 17. Multiple Choice
Identify the proton number of an ion that has 10 electrons, 14 neutrons and a charge of +3.
24
17
13
7
- 18. Multiple ChoiceHow many total electrons can the f orbitals in a sublevel hold?214610
- 19. Multiple Choice
What is the electron configuration for Helium?
1s2 2s2
1s2 2s1
1s2
- 20. Multiple ChoiceWhat is the charge on a lithium atom that looses 1 electron?+10-1-2
- 21. Multiple Choice
Choose the best answer of sub atomic particle for Mn2+ ion.
30 neutrons, 25 protons, 25 electrons
30 neutrons, 25 protons, 27 electrons
25 neutrons, 25 protons, 23 electrons
30 neutrons, 25 protons, 23 electrons
- 22. Multiple ChoiceWhat is the atomic number of Fe? (click to see image)2655.84556None of these
- 23. Multiple ChoiceHow many neutrons does B (Boron) contain?511610.811
- 24. Multiple ChoiceAn atom becomes _________ when it gains electrons.PositiveNegativeNeutralInvinsible
- 25. Multiple Choice
What is the charge of a sodium ion?
+2
+1
-1
-2
- 26. Multiple ChoiceGroup 17 always has ions with a charge of+1+2-1-2
- 27. Multiple ChoiceWhat charge will an Oxygen ion have?+1-1+2-2
- 28. Multiple ChoiceAn atom becomes _______ when it loses electrons.PositiveNegativeNeutralInvinsible
- 29. Multiple Choice
An atom...
is the smallest unit of matter
exists in a neutral state
is made up of protons, neutrons, electrons
all of the above
- 30. Multiple Choice
Choose the correct answer of atom or/and ion which have the electronic configuration of 1s2 2s2 2p6.
B
O and Ne
O2- , Mg and Ne
O2-, Mg2+ and Ne
- Answer choicesTagsAnswer choicesTags