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
Marina CMI [18]
3 years ago
12

What is the mass of an atom with seven protons.seven neutrons,and eight electrons?

Physics
2 answers:
arsen [322]3 years ago
4 0

Explanation:

It is given that the atom has 7 protons this means that atomic number of the atom is 7.

As we know that atomic mass of an atom is the sum of total number of protons and neutrons present in the atom.

So,       atomic mass of the given atom = no. of protons + no. of neutrons

                                                                = 7 + 7

                                                                 = 14

Thus, we can conclude that the mass of given atom is 14 g/mol.  

soldier1979 [14.2K]3 years ago
3 0
A nitrogen atom with 7 protons and 8 neutrons has a mass number of 15amu however on the periodic table the atomic mass for nitrogen is 14.01
You might be interested in
When you cut yourself how does your body heal the wound
Naya [18.7K]
Chemicals are released by the damaged tissue to bring platelets to the area to become sticky and to plug the vessels. An inflammatory response occurs which brings immune cells to fight infection and other clotting factors come to begin forming a new tissue.
8 0
3 years ago
Read 2 more answers
A cat falls from a table of height 1.3 m. What is the impact speed of the cat? ( i want the answer NOT THE FORMULA)
telo118 [61]
The impact speed will be
v^2 = 2*9.8*1.3
v^2 = 25.48
v= 5.04 m/s
4 0
3 years ago
Read 2 more answers
2. Jenny picks up a guitar and strums. If the sound from the string emanates out at 440 Hz,
erik [133]

Answer:

6.8×10^6 m

Explanation:

f = velocity of light/ wavelength

440= 3×10^8 / wavelength

so

wavelength = 3×10^7/ 44

= 6.8×10^6 m

7 0
3 years ago
In the United States, most of our energy comes from this non–renewable resource, which has a negative effect on the environment.
Eduardwww [97]
All of them have a negative effect on the environment. 
But your answer would be Natural Gas being the leading source of energy in the US by 31% overall. 
8 0
3 years ago
FOR BRAINLIEST!<br><br> Does the time in the air depend on forward velocity? Explain why
Alexxx [7]

The time in air is determined by the initial vertical velocity. This is because, the steeper the launch angle the larger the vertical velocity component, that causes the launch angle to increase the time in air.

I did Physics a while ago but I believe my answer is correct. (:

Hope this helps! (:

5 0
3 years ago
Other questions:
  • What is the de Broglie wavelength of an electron that strikes the back of the face of a TV screen at 1/10 the speed of light? __
    14·1 answer
  • One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 5.87 × 10-3 m2
    5·1 answer
  • Three particles lie in the xy plane. Particle 1 has mass m1 = 6.7 kg and lies on the x-axis at x1 = 4.2 m, y1 = 0. Particle 2 ha
    8·1 answer
  • A wooden beam with a mass of 10.8 kg is supported by vertical supports
    15·1 answer
  • A 500.0-g chunk of an unknown metal, which has been in boiling water for several minutes, is quickly dropped into an insulating
    9·1 answer
  • With a velocity of 15 m/s, how long would it take the dog to run 100 meters?
    9·2 answers
  • ASAP FIRST TO ANSWER CORRECTLY WILL BE BRAINLIEST
    6·1 answer
  • A 1.30 kg ball is attached to a ceiling by a
    8·1 answer
  • A hole of radius r has been drilled in a circular, flat plate of radius R. The center of the hole is a distance d from the cente
    8·1 answer
  • A 17 kg box experiences an applied force of +175 N and a force of friction of -125 N. While experiencing these unbalanced forces
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!