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PRE-TEST_SCIENCE_GRADE9

Quiz by Carlo Dela Cruz

Grade 9
Science
Philippines Curriculum: Grades K-10 (MELC)

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includes Teacher and Student dashboards

Measures 4 skills from
Grade 9
Science
Philippines Curriculum: Grades K-10 (MELC)

S9MT-IIe-f-16
S9MT-IIh-18
S9MT-IIi-19
S9MT-IIj-20

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40 questions
Show answers
  • 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?

    Answer Image
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    30s

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