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1-2-1 Discovering Parts of an Atom

Quiz by Lori Stroud

Grade 8
Science (2016)
Indiana Academic Standards

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17 questions
Show answers
  • Q1

    What is an atom mostly made of?

    neutrons

    empty space

    protons

    air

    30s
    8.PS.1
  • Q2

    Why have scientists only recently been able to see atoms?

    atoms are too small to see with ordinary microscopes

    scientists didn't know atoms existed

    early experiments disproved the idea of atoms

    scientists were not looking for atoms

    60s
    8.PS.1
  • Q3

    The earliest model of an atom contained only protons and electrons.

    False

    True

    30s
    8.PS.1
  • Q4

    Which best describes an atom?

    the smallest particle that still represents an element

    the smallest particle that still represents a compound

    a particle with a single negative charge

    a particle with a single positive charge

    60s
    8.PS.1
  • Q5

    What is Structure X?

    Question Image

    an electron

    a proton

    a neutron

    a nucleus

    60s
    8.PS.1
  • Q6

    Which best describes Structure X?

    Question Image

    very small part of the atom's mass; negative charge

    most of the atom's mass; neutral charge

    very small part of the atom's mass; positive charge

    most of the atom's mass; positive charge

    60s
    8.PS.1
  • Q7

    Air fills most of an atom.

    True

    False

    30s
    8.PS.1
  • Q8

    Which is true about the size of an atom?

    it can only be seen using a scanning tunneling microscope

    it is too small to see with any type of microscope

    it is about the size of the period at the end of this sentence

    it is large enough to be seen using a magnifying lens

    60s
    8.PS.1
  • Q9

    Whose model for the atom is shown?

    Question Image

    Bohr's

    Thomson's

    Rutherford's

    Dalton's

    60s
    8.PS.1
  • Q10

    In the present-day model of the atom, the nucleus of the atom is at the center of an electron cloud.

    True

    False

    30s
    8.PS.1
  • Q11

    What structure did Rutherford discover?

    Question Image

    the atom

    the electron

    the nucleus

    the neutron

    60s
    8.PS.1
  • Q12

    an area around an atomic nucleus where an electron is most likely to be found

    nucleus

    air

    empty space

    electron cloud

    45s
    8.PS.1
  • Q13

    a neutral particle that exists in the nucleus of an atom

    electron

    neutron

    nucleus

    proton

    45s
    8.PS.1
  • Q14

    an area where most of an atom's mass and positive charge is concentrated; in the center of an atom

    electron cloud

    air

    empty space

    nucleus

    45s
    8.PS.1
  • Q15

    an atomic particle that has one positive charge (1+) found in the nucleus

    proton

    nucleus

    neutron

    electron

    45s
    8.PS.1

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