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polet [3.4K]
3 years ago
8

What is the electron structure of a sodium atom?

Chemistry
2 answers:
Alla [95]3 years ago
7 0
1s22s22p63s1 is the electronic configuration of sodium.
labwork [276]3 years ago
6 0

Ans: A)

The electron configuration of an element can be represented based on Aufbau principle according to which the electrons fill up from the lower to higher energy levels.

s orbitals can accommodate a maximum of 2 electrons

p orbitals = 6 e-

d orbitals = 10 e-

f orbitals = 14 e-

The atomic number for sodium (Na) = 11

The 11 electrons in Na can be arranged as follows:

Na[11] = 1s²2s²2p⁶3s¹

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If you start with 6 mol of nitrogen gas (N2+) what mass (g) of ammonia (NH4) will be produced?
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Answer:

204g of NH3

Explanation:

The balanced equation for the reaction is given below:

N2 + 3H2 —> 2NH3

Next, we shall determine the number of mole NH3 produced by reacting 6moles of N2. This is illustrated below:

From the balanced equation above,

1 mole of N2 reacted to produce 2 moles of NH3.

Therefore, 6 moles of N2 will react to produce = 6 x 2 = 12 moles of NH3.

Finally, we shall convert 12 moles of NH3 to grams. This is illustrated below:

Number of mole of NH3 = 12 moles.

Molar mass of NH3 = 14 + (3x1) = 17g/mol

Mass of NH3 =..?

Mass = mole x molar mass

Mass of NH3 = 12 x 17

Mass of NH3 = 204g.

Therefore, 204g of NH3 will be produced from the reaction.

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3 years ago
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D.

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guapka [62]

Answer:

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2.50 liter of a gas has a pressure of 165. kPa at 25.0°C. If the pressure increases to 600. kPa and the temperature to 100.0°C,
tiny-mole [99]

Answer:

0.861 L

Explanation:

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Plug in the initial conditions on the left, then the final/new on the right, and solve for the unknown:

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