1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksley [76]
2 years ago
11

Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic conf

iguration of these two elements. Which of these will be more electronegative? Why?​
Chemistry
2 answers:
Zanzabum2 years ago
8 0

Explanation:

  • The atomic number of nitrogen is 7 , so its electronic configuration will be 2 , 5
  • The atomic number of phosphorus is 15 , so its electronic configuration is 2 , 8, 5

<u>Nitrogen is more electronegative than phosphorus. </u>

<u>Reason</u><u> </u><u>:</u><u>-</u>

<u>From top to bottom down a group, electronegativity decreases</u><u>.</u>

<u>Explanation</u><u> </u><u>:</u><u>-</u>

Number of shell increases down a group, so there is an increased distance b/w the valence electrons and nucleus, or a greater atomic radius.‎ ‎

       Since <u>nitrogen</u> has a smaller atomic radius than <u>phosphorus</u>, the attraction of its nucleus towards the incoming electron is more than phosphorus. So , <u>because of smaller atomic size nitrogen accepts electrons more easily.</u>

scoundrel [369]2 years ago
3 0

Answer:

Electronic configuration of nitrogen: K=2 L=5

Electronic configuration of phosphorus : K = 2 L = 8 M = 5

The element nitrogen will be more electronegative because of the smaller size of its atom. nitrogen accepts electrons more easily.

Explanation:

You might be interested in
What is the formula of ideal gas law?
Debora [2.8K]
PV = nRT. Where P = pressure, V = volume, n = number of moles, R = universal gas constant and T = temperature. Hope this helps!
3 0
3 years ago
Read 2 more answers
It is found that a gas undergoes a first-order decomposition reaction. If the rate constant for this reaction is 8.1 x 10-2 /min
kap26 [50]

Answer:

28.43 min

Explanation:

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given that:

The rate constant, k = 8.1\times 10^{-2} min⁻¹

Initial concentration [A_0] = 0.1 M

Final concentration [A_t] = 1.0\times 10^{-2} M

Time = ?

Applying in the above equation, we get that:-

1.0\times 10^{-2}=0.1e^{-8.1\times 10^{-2}\times t}

0.1e^{-8.1\times \:10^{-2}t}=10^{-2}

e^{-8.1\times \:10^{-2}t}=\frac{1}{10}

\ln \left(e^{-8.1\times \:10^{-2}t}\right)=\ln \left(\frac{1}{10}\right)

t=28.43\ min

3 0
3 years ago
How many neutrons are in silver
Blizzard [7]
60 neutrons are in silver
8 0
3 years ago
Read 2 more answers
What is the molar mass of an unknown gas<br> with a density of 4.95 g/L at 1.00 atm and<br> 25.0 °C?
mestny [16]

Answer:

121 g/mol

Explanation:

To find the molar mass, you first need to calculate the number of moles. For this, you need to use the Ideal Gas Law. The equation looks like this:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = constant (0.0821 L*atm/mol*K)

-----> T = temperature (K)

Because density is comparing the mass per 1 liter, I am assuming that the system has a volume of 1 L. Before you can plug the given values into the equation, you first need to convert Celsius to Kelvin.

P = 1.00 atm                         R = 0.0821 L*atm/mol*K

V = 1.00 L                             T = 25.0. °C + 273.15 = 298.15 K

n = ? moles

PV = nRT

(1.00 atm)(1.00L) = n(0.0821 L*atm/mol*K)(298.15 K)

1.00 = n(0.0821 L*atm/mol*K)(298.15 K)

1.00 = (24.478115)n

0.0409 = n

Now, we need to find the molar mass using the number of moles per liter (calculated) and the density.

0.0409 moles           ? grams           4.95 grams
----------------------  x  ------------------  =   ------------------
        1 L                       1 mole                     1 L

? g/mol = 121 g/mol

**note: I am not 100% confident on this answer

3 0
2 years ago
A 75 Kg skateboarder is riding downhill, exerting 25 N. What is their acceleration?
Hunter-Best [27]

Answer:

<h3>The answer is 0.33 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

where

m is the mass

f is the force

a is the acceleration

From the question

f = 25 N

m = 75 kg

We have

a =  \frac{25}{75}   =  \frac{1}{3}  \\  = 0.333333333...

We have the final answer as

<h3>0.33 m/s²</h3>

Hope this helps you

4 0
2 years ago
Other questions:
  • Three of the following statements are wrong. One is correct. Which of the following statements is correct?
    6·1 answer
  • A certain metal fluoride crystallizes in such a way that the fluoride ions occupy simple cubic lattice sites, while the metal io
    6·1 answer
  • Two unknown molecular compounds were being studied. A solution containing 5.00 g of compound A in 100. g of water froze at a low
    15·1 answer
  • Whose personal story did you read (if you read several, pick your favorite)? What was the most interesting or eye-opening part o
    7·1 answer
  • If the [H+] in a solution is 1 x 10^-1 mol/L, what is the [OH-]? Show your work, please i need help
    14·1 answer
  • A bacterium is in a nasty environment. What sort of reproduction would it use in this situation? Why? How else would it protect
    6·1 answer
  • Which of the following is a physical change? A) sawing a piece of wood in half. B) burning a piece of wood. C) rust forming on a
    10·1 answer
  • How many Group 17 elements are in Period 3 of the Periodic Table? A) 1 B) 2 C) 3 D) 4
    6·1 answer
  • Consider the molecular structure for linuron, an herbicide, provided in the questions below. How many pi bonds are in the molecu
    8·1 answer
  • 5 Examples of simple salts
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!