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3 years ago

The atomic mass of carbon-13 is 13. It has six protons. How many neutrons does this isotope have?

2 answers:

Ber [7]3 years ago

7 0

Carbon-13 will have 6 protons (because it is carbon), 6 electrons, and 7 neutrons. Isotopes have a different number of neutrons.

IgorC [24]3 years ago

3 0

Atomic mass is the given by the sum of the number of protons and number of neutron in the nucleus of the atom.

A = P + N

where A = atomic mass of the atom

P = number of protons in the nucleus of the atom

N = Number of neutrons in the nucleus of the atom

Given that :

A = atomic mass = 13

P = number of protons in the nucleus = 6

N = ?

Using the equation

A = P + N

13 = 6 + N

N = 13 - 6

N = 7

hence the isotope has 7 neutrons

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2 years ago

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Alinara [238K]

Answer:

Then the difference of weight between the two cars are:

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3 years ago

A 1 pound bucket rests on a table. What is the support force exerted on the bucket by the table? What is the support force when

katrin2010 [14]

This question involves the concepts of equilibrium and Newton's third law of motion.

The support force will be "1 pound" for the empty bucket and the support force will be "6 pounds" after pouring water into it.

According to the condition of equilibrium, the sum of forces acting on a stationary object must be zero. Hence, the support force of the table will be equal to the total mass of the bucket.
According to Newton's Third Law of Motion every action force has an equal but opposite reaction force. Hence, the support force will be a reaction force to the weight of the bucket.

Therefore, the support force in each case will be equal to the total mass of the bucket:

Case 1 (empty bucket):

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Learn more about equilibrium here:

brainly.com/question/9076091

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3 years ago

please hurry In which state of matter has the LEAST kinetic energy? A) gas B) liquid C) plasma D) solid

anastassius [24]

Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.

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3 years ago

Read 2 more answers