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
natita [175]
3 years ago
13

This diagram is a model of the nitrogen atom.

Physics
1 answer:
andrey2020 [161]3 years ago
7 0
C.
Nitrogen has the atomic no. of 7 so the proton and the electron no. is 7.
Three more electrons are needed to fulfil the octet structure: 2,8
You might be interested in
Thorium ____ has 90 protons and 137 neutrons.
Paha777 [63]

Answer:

Thorium 227 (also known as Radioactinium)

5 0
2 years ago
Which of the following has the most biomass?
Crazy boy [7]
Where are the questions so that I can deliver a more accurate answer. 
8 0
3 years ago
17 copper wires of length l and diameter d are connected in parallel to form a single composite conductor of resistance R. What
Lubov Fominskaja [6]

Answer:

\frac{D}{d} = 4.12

Explanation:

As we know that resistance of one copper wire is given as

r = \rho \frac{L}{a}

here we know that

a = \pi (\frac{d}{2})^2

now we have

r = \rho \frac{L}{\pi (\frac{d^2}{4})}

r = \rho \frac{4L}{\pi d^2}

now we know that such 17 resistors are connected in parallel so we have

R = \frac{r}{17}

R = \rho \frac{4L}{17 \pi d^2}

Now if a single copper wire has same resistance then its diameter is D and it is given as

R = \rho \frac{4L}{\pi D^2}

now from above two equations we have

\rho \frac{4L}{\pi D^2} = \rho \frac{4L}{17 \pi d^2}

D^2 = 17 d^2

now we have

\frac{D}{d} = 4.12

3 0
3 years ago
Which activity would be the best choice foir a lifelong fitness program
Fantom [35]

I think jogging/running/walking because you don't need any equipment and you can structure around it on your own time.

7 0
3 years ago
Read 2 more answers
Which statement describes the relationship between energy and entropy in the universe?
rusak2 [61]

In fact, entropy of an isolated system never decreases (2nd law of thermodynamics), unless some external energy is provided in order to "restore" order in the system and decrease its entropy.

(note that when external energy is added to the system, it is no longer "isolated").


*This is only true if the question is referring to a certain system within the universe. If we are considering the universe itself as the system, then this option is no longer correct, because no external energy can be provided to the universe, and since the universe is an isolated system, its entropy can never decrease. If we are considering the universe itself as the system, none of the options is true.




8 0
3 years ago
Read 2 more answers
Other questions:
  • You are caulking a window. The caulk is rather thick and, to lay the bead correctly, the exit nozzle is small. A caulking gun us
    14·1 answer
  • A uniform crate with a mass of 22 kg must be moved up along the 15° incline without tipping. The force P is horizontal. Determin
    8·1 answer
  • The number of waves passing a fixed point per second is known as ______________.
    7·1 answer
  • Can someone pls answer number 8 for me pls
    10·1 answer
  • A protostar is _____.
    11·2 answers
  • Why there is tides in sea and ocean
    14·1 answer
  • The density of balsa wood is 0.170 g/cm3.  What is the mass if the volume is 12.0 mL?
    8·1 answer
  • What is the gravitational force between two objects?​
    7·2 answers
  • The space shuttle slows down from 1200 km/hr to 400 km/hr over 10 seconds. What is the space shuttles deceleration?
    11·1 answer
  • __________is a semi-liquid paste that results from the mixing of partially digested food with gastric juice in the stomach.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!