PRE-TEST_SCIENCE_GRADE9
Quiz by Carlo Dela Cruz
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includes Teacher and Student dashboards
Measures 4 skills fromGrade 9SciencePhilippines Curriculum: Grades K-10 (MELC)
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- Q1
The spin quantum number of an electron can be thought of as describing _______
whether the electron's charge is positive or negative.
the electron's exact location in orbit.
the number of revolutions the electron makes about the nucleus per second
the direction of electron spin.
30s - Q2
How many electrons from the outermost shell does a 4s orbital possess?
3
4
5
2
30s - Q3
Which set of quantum numbers uniquely defines one of the electrons in an atomic orbital with n = 2 and l = 0?
n = 2, l = 0, ml = 0, ms = +½
n = 2, l = 0, ml = 1, ms = +½
n = 2, l = 0, ml = 1, ms = +1
n = 2, l = 0, ml = 0, ms = +1
30s - Q4
What is the electron configuration for nitrogen, atomic number 7?
1s22s3 2p2
1s2 2s2 2p2 3s1
1s22s2 2p3
1s22s2 2p1
30s - Q5
Which of these d-orbitals contains both paired and unpaired electrons?
30s
