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3 years ago

Which of the following atoms will have the same electron configuration?

Chemistry

1 answer:

chubhunter [2.5K]3 years ago

7 0

Answer:

I. N−3

III. F−1

Explanation:

A positive charge indicates a loss of electrons whereas a negative charge denotes electron gain.

For two species to have the same electron configuration, they must have the same number of electrons within their atomic space.

So, the solution to this problem will be two species with the same number of electrons:

Nitrogen in neutral state has 7 electrons, on gaining 3 the electrons becomes 10

Fluorine in neutral state has 9 electrons, on gaining 1 more, it will have 10 electrons.

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NEED HELP!!!

Vilka [71]

Answer:

1.atomic number

2.electron

3.element

4.atom

5.neutron

6.nucleus

7.proton

Explanation:

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6 0

3 years ago

Describe the particle mode of matter. what does the brownian motion tells us about the particles in matter?give other evidence t

svetlana [45]

Answer:

dium (a liquid or a gas). This pattern of motion typically consists of random fluctuations in a particle's position inside a fluid sub-domain, followed by a relocation to another sub-domain. Each relocation is followed by more fluctuations within the new closed volume. This pattern describes a fluid at thermal equilibrium, defined by a given temperature. Within such a fluid, there exists no preferential direction of flow (as in transport phenomena). More specifically, the fluid's overall linear and angular momenta remain null over time. The kinetic energies of the molecular Brownian motions, together with those of molecular rotations and vibrations, sum up to the caloric component of a fluid's internal energy (the Equipartition theorem).

Explanation:

3 0

3 years ago

Un globo lleno de helio tenia un volumen de 8.5 L en el suelo a 20°C y a una presión de 750 torr. Cuando se le soltó, el globo s

Ray Of Light [21]

Answer:

El volumen del gas era 12.95 L

Explanation:

Se relaciona la presión y el volumen mediante la ley de Boyle, que dice:

“El volumen ocupado por una determinada masa gaseosa a temperatura constante, es inversamente proporcional a la presión”

La ley de Boyle se expresa matemáticamente como: P*V=k

Por otro lado, la Ley de Charles consiste en la relación que existe entre el volumen y la temperatura absoluta de una cierta cantidad de gas ideal, el cual se mantiene a una presión constante. Esta ley dice que cuando la cantidad de gas y de presión se mantienen constantes, el cociente que existe entre el volumen y la temperatura siempre tendrán el mismo valor:

$\frac{V}{T}=k$

Por último, la Ley de Gay Lussac dice que la temperatura absoluta y la presión son directamente proporcionales. Es decir, cuando se mantiene todo lo demás constante, mientras suba la temperatura de un gas subirá también su presión. Y mientras la temperatura del gas baje, lo mismo ocurrirá con la presión:

$\frac{P}{T}=k$

Combinado las mencionadas tres leyes se obtiene:

$\frac{P*V}{T} =k$

Cuando se desean estudiar dos diferentes estados, uno inicial y una final de un gas, se puede aplicar:

$\frac{P1*V1}{T1} =\frac{P2*V2}{T2}$

Recordando que la temperatura debe usarse en grados Kelvin, conoces los siguientes datos:

P1: 750 torr
V1: 8.5 L
T1: 20°C= 293°K (siendo 0°C=273°K)
P2: 425 torr
V2: ?
T2: -20°C= 253 °K

Reemplazando:

$\frac{750 torr*8.5 L}{293K} =\frac{425 torr*V2}{253 K}$

Resolviendo:

$V2=\frac{750 torr*8.5 L}{293K} *\frac{253 K}{425 torr}$

V2= 12.95 L

<u><em>El volumen del gas era 12.95 L</em></u>

5 0

3 years ago

A client who weighs 70 kg is receiving a solution of 0.9% sodium chloride (normal saline) 500 ml with dopamine 800 mg at 5 ml/ho

nordsb [41]

The mcg/kg/minute the client is receiving is 1.904 mcg/kg/min whose weight is 70 kg.

1 milligram (mg) = 1000 micrograms (mcg) or 0.001 grams (g) 1 g = 1000 mg 1 kilogram (kg) = 1000 g 1 kg = 2.2 pound (lb) 1 liter (L) = 1000 milliliters (mL)

The number of mcg/kg/minute = flow rate × concentration ÷ mass of client

Flow rate = 12 ml/hour = 12 ml/hour × 1 hr/60 min = 0.2 ml/min

Concentration = mass of dopamine/volume

where

mass of dopamine = 800 mg and

volume = 500 ml

Concentration =800 mg/500 ml

= 1.6 mg/ml

= 1.6 mg/ml × 1000 mcg/mg

= 1600 mcg/ml

mass of client = 70 kg

Calculating mcg/kg/minute

So, substituting the variables into the equation, we have

mcg/kg/minute = flow rate × concentration ÷ mass of client

mcg/kg/minute = 0.08 ml/min × 1600 mcg/ml ÷ 70 kg

mcg/kg/minute = 320 mcg/min ÷ 70 kg

mcg/kg/minute = 1.904 mcg/kg/min

Thus, the mcg/kg/minute the client is receiving is 1.904 mcg/kg/min

Learn more about mcg/kg/minute here:

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7 0

2 years ago

ASAP I AM GIVING BRAINLIEST PLEASEEEEEEEEEEEEEEE HELPPPPPPPPPP

faust18 [17]

Answer:

D) It has a different unit than atomic mass.

4 0

3 years ago