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Orlov [11]
3 years ago
11

Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement

for nitrogen?
2, 7
2, 5
2, 2, 3
2, 8, 4
Chemistry
2 answers:
OverLord2011 [107]3 years ago
7 0

Answer:

B) 2,5 seems to be the correct answer

Explanation:

The atomic mass is 14, and the atomic number is 7. Knowing this, the atom must have 7 electrons. A and D are not correct because they both include a number that is not 7 if you add. B or C seem to be the best answers, I think it's B because C has the same number repeated twice in it. I might be wrong but I know that the answer has to be either B or C.

A thanks or a good rating would be appreciated :)

bonufazy [111]3 years ago
3 0

Answer:

2, 5

Explanation:

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Dinitrogen pentoxide gas is formed by the reaction of nitrogen trioxide gas and nitrogen dioxide gas balanced equation
leonid [27]

Answer:

Balanced chemical  equation:

NO₂ + NO₃ → N₂O₅

Explanation:

Chemical equation:

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7 0
3 years ago
51.7ml at 27 Celsius and 90kpa to stp
never [62]
STP is the abbreviation of standard condition for temperature and pressure which is 273.15K temperature and 1.013× 10^5 Pa pressure. Since the pressure and temperature changes, I assume the question would ask about the result of the volume. The temperature used in ideal gas should be Kelvin, so 27 Celcius would be 300.15K.
The calculation would be
PV=T
V=T/P

V2/V1= T2*P1/T1*P2
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V2= 0.81904 * 51.7ml
V2= 42.34ml
6 0
3 years ago
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