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
sashaice [31]
3 years ago
8

How many electrons does phosphorus have in its valence shell and neutrons in its nucleus, respectively?

Chemistry
1 answer:
DaniilM [7]3 years ago
5 0
If you look at the periodic table of elements, you can see that atomic number for phosphorus is 15. It means that it has 15 electrons and 15 protons total. Now you can write configuration for P which is:  1s22s22p63s23p3. or [Ne] 3s2<span> 3p</span><span>3 </span><span>
From here, you can see that it has 5 valence electrons (s2+p3).

In the periodic table of elements the number of protons+ number of neutrons is determined as atomic mass. Atomic mass of the P is 30. 
number of neutrons = atomic mass-atomic number 
number of neutrons = 30-15
number of neutrons= 15 </span>
You might be interested in
I'm sorry for asking so many questions this assignment is past due and I need it done NOW
marishachu [46]

Answer:

7N to the right

Explanation:

7 0
2 years ago
Where are most of the metals found on the periodic table
sergeinik [125]

Answer:

Left

Explanation:

Metals are located on the left of the periodic table, and nonmetals are located on the upper right. They are separated by a diagonal band of semimetals.

3 0
3 years ago
A current of 0.15 A is passed through an aqueous solution of K2PtCl4. How long will it take to deposit 1.00 g Pt(s) (M = 195.1)?
koban [17]

First calculate the electric charge used to deposit 1.0 g Pt

C = (1.0 g Pt) (1 mol Pt / 195.1 g Pt) ( 2 mol e / 1 mol Pt) ( 96485 C / 1 mol e)

C = 989.08 C

C = It

Where I is the current

T is the time

T = C / i

T = 989.08 C / 0.15 A

T = 6593.88 s

T = 1.83 hrs

7 0
3 years ago
The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant
Elena-2011 [213]

Answer:

20 atm / (R . 321 K . i) = M

Explanation:

Osmotic pressure is a colligative property which is determined by the solute.

Solutes over solutions, can increase the osmotic pressure which is calculated like this:

P = M . R . T

where P is pressure, M is molarity, R the Universal Constant Gases and T, the absolute Temperature. We also have to consider the Van't Hoff factor, i, numbers of ions dissolved. Ionic salts determine more osmotic pressure than organic compounds, where i = 1. Then, the complete formula is:

π =  M . R . T . i

To determine molarity, osmotic pressure divide all the terms:

20 atm / (R . 321 K . i) = M

R = 0.082 L.atm/mol.K

If you see all the units in R, they will be cancelled, so finally the answer will be mol/L, which is molarity. The i term has no unit!.

4 0
2 years ago
Consider two bonds, A and B. Both bonds presently are selling at their par value of $1,000. Each pays interest of $120 annually.
Dima020 [189]

Answer:

The answer is "Option b"

Explanation:

The longer its maturity, therefore higher the rise in prices as the interest rate changes, therefore higher the value from both bonds, but bond B is greater than bond A.

 

6 0
3 years ago
Other questions:
  • Which energy transformation most likely occurs in a steam iron
    6·1 answer
  • I need help with this!!!
    9·1 answer
  • What is a system?
    11·1 answer
  • Why do we not see a lunar
    14·1 answer
  • What happens when a vinyl strip is rubbed with a woolen cloth, then brought near a stream of water?
    9·1 answer
  • Which of the following units is a derived unit? <br> Second<br> Meter<br> Density<br> Ampere
    13·2 answers
  • What factors trigger the evolution of a species?
    10·2 answers
  • If liquid water is exposed to normal atmospheric pressure, what needs to change in order to change its state of matter?
    8·1 answer
  • PLZ HELP IM CONFUSED
    12·1 answer
  • A student is investigating acceleration using balls with
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!