4041579
Descripción
Test por cayetanalian2002, actualizado hace más de 1 año
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Creado por cayetanalian2002
hace más de 8 años
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Pregunta 1
Pregunta
What is a atom?
Respuesta
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Are the smallest particles of matter, that we cannot break down further by chemical means
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Are the biggest particles of matter, that we can break down further by chemical means
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Are the biggest particles of matter, that we cannot break down further by chemical means
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Are the smallest particles of matter, that we can break down further by chemical means
Pregunta 2
Pregunta
A element contains 2 or more kinds of atoms
Respuesta
- True
- False
Pregunta 3
Pregunta
What are the symbols of these elements:
Lithium, Sodium, Carbon, Nitrogen, Oxygen, Helium, Gold, Silver, Copper
Respuesta
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Li, Na, C, N, O, He, Au, Ag, Cu
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Li, So, C, Ni, O, He, G, S, Co
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Li, Na, C, N,O, H, Au, S, Cu
Pregunta 4
Pregunta
Atoms 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].
Respuesta
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electrons
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protons
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neutrons
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atomic mass
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grams
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electric charge
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atomic number
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overall charge
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atom
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nucleus
Pregunta 5
Pregunta
Diffusion - The particles mix and spread by colliding with other moving particles, and boucing off in all directions.
Respuesta
- True
- False
Pregunta 6
Pregunta
What is an ion?
Respuesta
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The particles are atoms or groups of atoms that carry a charge.
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The particls are atoms or groups of atoms that does not carry a charge
Pregunta 7
Pregunta
The partivles in a solid are arrranged in a fixed pattern or lattice
Respuesta
- True
- False
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