4648756
Descripción
Test por haaniaaamir13, actualizado hace más de 1 año
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Creado por haaniaaamir13
hace más de 8 años
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Pregunta 1
Pregunta
Which of the two elements Mg and Al has a more stable structure?
Respuesta
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Mg
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Al
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Both have stable structure
Pregunta 2
Pregunta
As we go from left to right in a period, the atomic radius
Respuesta
-
Increases
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Decreases
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Does not change
Pregunta 3
Pregunta
According to the Pauling scale, the most electronegative element is
Respuesta
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Francium
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Cesium
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Fluorine
Pregunta 4
Pregunta
Electronegativity is defined as
Respuesta
-
A measure of the charge on the electrons surrounding the nucleus in an atom.
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A measure of the tendency of an atom to attract a bonding pair of electrons.
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A measure of the tendency of an atom to attract an electron towards itself.
Pregunta 5
Pregunta
In going from left to right in a period, the electronegativity values
Respuesta
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Decrease
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Increase
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Increase and then decrease
Pregunta 6
Pregunta
The electronegativity value of Argon is
Respuesta
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0.7
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3
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No value
Pregunta 7
Pregunta
The structures of elements, as you go from left to right in a period, change as follows
Respuesta
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Na, Mg and Al have metallic structures. Si has giant covalent structure. P, S, Cl, Ar are simple molecules.
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Na, Mg and Al are simple molecules. Si has metallic structure. P, S, Cl, Ar have a covalent structure.
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All elements have same structure.
Pregunta 8
Pregunta
The electrical conductivity in period 3, as you move from left to right in the period
Respuesta
-
Increases
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Decreases
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Remains constant
Pregunta 9
Pregunta
The forces of attraction between the molecules of Phosphorous, Sulphur, Chlorine and Argon are
Respuesta
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Van der Waal attractions
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Ionic bonds
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Covalent bonds
Pregunta 10
Pregunta
The melting and boiling points of Phosphorous, Sulphur, Chlorine and Argon as compared to ones of previous elements in the period are
Respuesta
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Lower
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Higher
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Equal
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