Unit Test — Unit test Answers
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How many valence electrons does aluminum (Al) have available for bonding?
A
1B
2C
3D
422
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Which element is classified as an alkali metal?
A
RbB
SrC
ZrD
Cl23
Which of the following symbols would be included in the noble gas notation for an element that had valence electrons in the 5s subshell?
A
ArB
KrC
XeD
Rn24
Consider the model of the nitrogen atom.Which electron configuration matches this model?
A
1s22s22p2B
1s22s22p3C
1s22s22p4D
1s22s22p525
Which statement about Niels Bohr’s atomic model is true?
A
Higher orbits have lower energies.B
Each orbit has a specific energy level.C
Electrons can exist in any energy level.D
Orbits close to the nucleus have no energy.Did you find these answers helpful?
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