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Chemistry

cayetanalian2002 7 preguntas Actualizado el 10 sep 2016

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Preguntas del test (7)

  1. 1What is a atom?
    1. AAre the smallest particles of matter, that we cannot break down further by chemical means
    2. BAre the biggest particles of matter, that we can break down further by chemical means
    3. CAre the biggest particles of matter, that we cannot break down further by chemical means
    4. DAre the smallest particles of matter, that we can break down further by chemical means
  2. 2A element contains 2 or more kinds of atoms
    1. AVerdadero
    2. BFalso
  3. 3What are the symbols of these elements:
    Lithium, Sodium, Carbon, Nitrogen, Oxygen, Helium, Gold, Silver, Copper
    1. ALi, Na, C, N, O, He, Au, Ag, Cu
    2. BLi, So, C, Ni, O, He, G, S, Co
    3. CLi, Na, C, N,O, H, Au, S, Cu
  4. 4Atoms consist of a nucleus and a cloud of [blank_start]electrons[blank_end] that move around the nucleus. The nucleus is itself a cluster of two kinds of particles, [blank_start]protons[blank_end] and [blank_start]neutrons[blank_end].
    All particles in an atom are very light. So their mass is measured in [blank_start]atomic mass[blank_end] units, rather than [blank_start]grams[blank_end]. Protons and electrons also have an [blank_start]electric charge[blank_end].
    You can identify an atom by the number of protons it has.
    The number of protons in the [blank_start]nucleus[blank_end] of an atom is called its protom number (or [blank_start]atomic number[blank_end]).
    Every [blank_start]atom[blank_end] has an equal number of protons and electrons. Si atoms have no [blank_start]overall charge[blank_end].
    1. Aelectrons
    2. Bprotons
    3. Cneutrons
    4. Datomic mass
    5. Egrams
    6. Felectric charge
    7. Gatomic number
    8. Hoverall charge
    9. Iatom
    10. Jnucleus
  5. 5Diffusion - The particles mix and spread by colliding with other moving particles, and boucing off in all directions.
    1. AVerdadero
    2. BFalso
  6. 6What is an ion?
    1. AThe particles are atoms or groups of atoms that carry a charge.
    2. BThe particls are atoms or groups of atoms that does not carry a charge
  7. 7The partivles in a solid are arrranged in a fixed pattern or lattice
    1. AVerdadero
    2. BFalso

Información

Descripción
Quick tests about Elements and Atoms: True and False Multiple choice
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Creado el 15 nov 2015 · actualizado el 10 sep 2016
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