1942224
Descripción
Test por Kaylan Patel, actualizado hace más de 1 año
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Creado por Kaylan Patel
hace casi 10 años
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Pregunta 1
Pregunta
Which are the correct subatomic particles?
Respuesta
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Proton, Neutron, Electron
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Molecules, Neuton, Force
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Electron, Nucleus, Proton
Pregunta 2
Pregunta
Neutrons have a negative charge.
Respuesta
- True
- False
Pregunta 3
Pregunta
Select all of the true options about electrons.
Respuesta
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Positively charged.
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Mass of 0
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Found in the nucleus.
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Same number of electrons as there are neutrons in an atom.
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Same number of electrons as there are protons in an atom.
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The atomic number shows the number of electrons.
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Negatively Charged.
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Mass of 1.
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Found in the energy levels surrounding the nucleus.
Pregunta 4
Pregunta
Elements in the same group have the same number of electrons in their outermost energy levels.
Respuesta
- True
- False
Pregunta 5
Pregunta
Nobel gases have a full outer shell.
Respuesta
- True
- False
Pregunta 6
Pregunta
Nobel gases are highly reactive.
Respuesta
- True
- False
Pregunta 7
Pregunta
When chemicals react...
Respuesta
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They chemically bond and orbit each other.
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They chemically bond by just getting rid of excess electrons.
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They chemically bond either by exchanging electrons, or by sharing them
Pregunta 8
Pregunta
The mass of the products should be lower than the mass of the reactants.
Respuesta
- True
- False
Pregunta 9
Pregunta
The body has many ways to protect the body from the effects of pathogens. What is the role of mucus in this process?
Respuesta
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It kill the pathogen.
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Traps the pathogen, preventing it from entering the body.
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It harms the pathogen.
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All of the above.
Pregunta 10
Pregunta
What is the role of white blood cells in preventing pathogens from harming us?
Respuesta
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Can ingest pathogens within the white blood cells themselves.
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Produce antibodies which attach to pathogens and destroy them.
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Produce antitoxins to contract the toxins produced by pathogens.
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Overheat the pathogen, killing them.
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Forcing the pathogens out through the respiratory system.
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Placing the pathogen within the cytoplasm of cells.
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Overheat the pathogen, killing them.
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Forcing the pathogens out through the respiratory system.
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Placing the pathogen within the cytoplasm of cells.
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Overheat the pathogen, killing them.
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Forcing the pathogens out through the respiratory system.
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Placing the pathogen within the cytoplasm of cells.
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Overheat the pathogen, killing them.
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Forcing the pathogens out through the respiratory system.
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Placing the pathogen within the cytoplasm of cells.
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