GCHEMI Midterm Summative Test
Authored by Mark Gerald Dalanon
Science
University
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60 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does the group number of an element represent?
number of valence electrons
number of electrons
number of protons
number of orbits
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many electrons can p orbitals carry?
6
2
10
14
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the electron configuration of Calcium?
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6 4s1
1s2 2s2 2p6 3s2 3p6 4s3
1s2 2s2 2p6 3s2 3p6 4s4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the electron configuration of Rubidium?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Using the group number, how many valence electrons does Platinum have?
10
11
12
9
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the Periodic Table, compute the molar mass of baking soda (NaHCO_3).
84.02 g/mol
80.09 g/mol
85.06 g/mol
90.81 g/mol
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molecular mass of ammonia (NH_3)?
17.04 g/mol
18.04 g/mol
18.04 g/mol
16.04 g/mol
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