According to the quantum-mechanical model, which element will have similar chemical properties to an element with z = 7?

1 answer:

7 0

According to the quantum-mechanical model, Phosphorous will have have similar chemical properties to an element with Z = 7

Quantum mechanics models describe the opportunity of putting electrons inside an atom through describing the main power degree, energy degree, orbital (arbitrary degree), and spin of. The quantum mechanics version is based totally on quantum theory, which states that rely has wave-like properties.

The quantum mechanical model is primarily based on quantum concept, which states that matter nonetheless has wave-related residences. The quantum mechanical model is critical for knowledge chemistry since it describes how electrons arise in atoms and how these electrons determine the chemical and physical homes of an detail.

The maximum particular clocks within the global, atomic clocks, are able to use standards of quantum idea to measure time. They screen the specific radiation frequency needed to make electrons leap among energy tiers.

explanation :

Nitrogen (Z = 7) is in Group 15 element

and will have similar properties to other Group 15 elements, like Phosphorous etc.

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We need to measure 20.0 grams of CaCl₂ to prepare 500 mL of 0.360 M solution.

First, we need to determine the required moles of CaCl₂. We have 500 mL (0.500 L) of a 0.360 M solution (0.360 moles of CaCl₂ per liter of solution).

$0.500 L \times \frac{0.360mol}{L} = 0.180 mol$

Then, we will convert 0.180 moles to grams using the molar mass of CaCl₂ (110.98 g/mol).

$0.180 mol \times \frac{110.98g}{mol} = 20.0 g$

To prepare the solution, we weigh 20.0 g of CaCl₂ and add it to a beaker with enough distilled water to dissolve it. We stir it, heat it if necessary, and when we have a solution, we transfer it to a 500 mL flask and complete it to the mark with distilled water.

We need to measure 20.0 grams of CaCl₂ to prepare 500 mL of 0.360 M solution.

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