All categories

3 years ago

Which of the following is a possible ground-state electron configuration?

Chemistry

2 answers:

Kobotan [32]3 years ago

8 0

<span>A. [Xe] 6s24f145d106p2

Is the correct answer</span>

Mamont248 [21]3 years ago

3 0

Answer : Option A) [Xe] $6s^{2}4f^{14}5d^{10}6p^{2}$

Explanation : Lead is the element which is represented in the ground state electron configuration as [Xe] $6s^{2}4f^{14}5d^{10}6p^{2}$ .

It has only 2 + 14 + 10 + 2 = 28 electrons and protons more than that of Xenon.

Xenon has atomic number as 54, now adding 28 protons in its atom will make it 82 which the atomic number of Lead.

You might be interested in

N2 + 3 H2 – 2 NH3 How many moles of nitrogen (N2) are required to get 6

Iteru [2.4K]

Answer:

N2 + 3H2 → 2NH3. 14 moles a. If 6 mol of H2 are consumed, how many moles of NH3 are produced? ... a 3 mol H₂. 4. How many moles of nitrogen are needed to make 11 moles of NH3? Il mol NH₃ x Imol Na = 15.5

5 0

3 years ago

What is the Gibbs energy, LaTeX: \Delta GΔ G, when the very first crystal of potassium nitrate forms in solution while cooling,

VARVARA [1.3K]

Answer:

74.344 kJ.

Explanation:

Below is an attachment containing the solution.

3 0

3 years ago

What is a combination of two or more substances that are all solids

Sophie [7]

Answer:

Solids cant react to each other because they are the same room temperature

7 0

3 years ago

How does the type of medium affect a sound wave? Give an Example

ivanzaharov [21]

Answer:

Sound waves need to travel through a medium such as solids, liquids and gases. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly.Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Temperature also affects the speed of sound.Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. A vibrating string can create longitudinal waves as depicted in the animation below.

Explanation:

4 0

3 years ago

Nitrogen dioxide (NO2) cannot be obtained in a pure form in the gas phase because it exists as a mixture of NO2 and N2O4. At 16°

Pavel [41]

Answer:

PNO₂ = 0.49 atm

PN₂O₄ = 0.45 atm

Explanation:

Let's begin with the equation of ideal gas, and derivate from it an equation that involves the density (ρ = m/V).

PV = nRT

n = m/M (m is the mass, and M the molar mass)

$PV = \frac{m}{M}RT$

$PxM = \frac{m}{V}RT$

PxM = ρRT

ρ = PxM/RT

With the density of the gas mixture, we can calculate the average of molar mass (Mavg), with the constant of the gases R = 0.082 atm.L/mol.K, and T = 16 + 273 = 289 K

$2.7 = \frac{0.94xMavg}{0.082x289}$