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3 years ago

10

As we move ACROSS the periodic table in a row, the electronegativity increases decreases

2 answers:

Korvikt [17]3 years ago

8 0

As you go across a row , or period , the electronegativity INCREASES.

trasher [3.6K]3 years ago

6 0

It increases across a period but it decreases down a group.

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La magnitud del campo eléctrico E entre dos placas paralelas es 8kN/C. Las placas están separadas 0.03m. ?Cuánto trabajo realiza

olchik [2.2K]

<h2>Respuesta:</h2>

Si tenemos dos placas paralelas y un campo electrico de 8kN/C entre ellas y además conocemos la separación de estas placas que es igual a 0.03m. Entonces, cuando una carga se mueve de un punto a a un punto b el trabajo que es realizado sobre la carga por el campo eléctrico viene dado por la siguiente ecuación:

$W_{a \rightarrow b}=q_{0}E(y_{a}-y_{b})$

Dado que la carga se mueve desde la placa negativa hasta la placa positiva, entonces:

$y_{a}$

$W_{a \rightarrow b}=q_{0}E(-d) \\ \\ W_{a \rightarrow b}=-q_{0}Ed$

Finalmente, sustituyendo:

$W_{a \rightarrow b}=-(-3 \times 10^{-6})(8\times 10^{3})(0.03) \\ \\ \boxed{W_{a \rightarrow b}=7.2\times 10^{-4}J}$

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