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
adoni [48]
3 years ago
12

How many neutrons does element X have if its atomic number is 26 and its mass number is 82?

Physics
1 answer:
taurus [48]3 years ago
6 0

The mass number is calculated by adding the number of protons and the number of neutrons.

Therefore, you can find the number of neutrons by subtracting the number of protons from the mass number. The number of protons is equal to the atomic number, therefore you just have to do the mass number - atomic number to find the number of neutrons.

82 - 26 = 56 neutrons.

You might be interested in
Not sure what to put this under
cestrela7 [59]

family 16 cause i said so XD


5 0
3 years ago
Describe the energy change in the particles of a substance during melting. A) The kinetic energy of the particles remains unchan
Rina8888 [55]

Answer:

As ice melts into water, kinetic energy is being added to the particles. This causes them to be 'excited' and they break the bonds that hold them together as a solid, resulting in a change of state: solid -> liquid.

Explanation:

As we may know, the change in state of an object is due to the change in the average kinetic energy of the particles.

This average kinetic energy is proportional to the temperature of the particles.

This is because heat is a form of energy; by adding energy to ice - heat, you "excite" the water molecules, breaking the interactions in the lattice structure and forming weaker, looser hydrogen-bonding interactions.

This causes the ice to melt. This is demonstrated in the image below.

More generally, when you remove energy - the object cools down, the particles move a lot slower. So slow, that they individually attract other molecules more than before, and this results in a physical change that also changes the state.

3 0
3 years ago
Read 2 more answers
What is the difference between heat and temperature
Tasya [4]
Temperature is the measurement system we use to measure the heat
7 0
3 years ago
PLEASE HELP!! I WILL MARK BRAINLIST
Stella [2.4K]

sound wave amplitude

3 0
3 years ago
You have four fixed-volume containers at STP . Container A has 0.5 mol of gas in 11.2 L. Container B has 2 mol of gas in 22.4 L.
Colt1911 [192]

Answer:

Container A and C

Explanation:

ideal gas equation gives P=nRT/V

so at constant Temperature and pressure, P=n/T

Container A and C after dividing number of moles and Volume, are found to be the same=0.0446

8 0
3 years ago
Other questions:
  • 1. What was the electromagnetic spectrum ?
    5·1 answer
  • cutting paper into a snowflake is an example of a chemical change put the thoughts then put do agree disagree or depends when th
    6·1 answer
  • If a constant force acts on two objects of different masses which object will accelerate more?
    10·1 answer
  • A 0.250-kg ball is thrown upwards with an initial velocity of 12.0 m/s Determine the acceleration of the ball when it has reache
    6·1 answer
  • A 5.2 cm diameter circular loop of wire is in a 1.35 T magnetic field. The loop is removed from the field in 0.29 sec. Assume th
    12·1 answer
  • Which wavelengths of light drive the highest rates of photosynthesis?
    6·1 answer
  • What is a parallel universe, and could there potentially be ones that contain doppelgängers of everyone on Earth?
    12·1 answer
  • What is the weight of an object with a force of 35 pounds ?
    6·1 answer
  • A 2kg mass is moving at 3m/s. What is its kinetic energy?
    14·1 answer
  • Modern observations have shown that the geometry of the universe is ____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!