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olasank [31]
3 years ago
6

Explain the nuclear model of the atom

Chemistry
1 answer:
EastWind [94]3 years ago
6 0

Answer:

Explanation:

The nuclear model of the atom was suggested by Ernest Rutherford based on his experiment on a thin gold foil.

To explain his observations, he suggested the atomic or nuclear model.

In this model, the atom has a small positively charged center called the nucleus.

All the mass of the atom is concentrated here in the nucleus.

Surrounding the nucleus is a large space

It is the extranuclear part

This part contains electrons.

A nucleus surrounded by electrons forms the nuclear model of the atom.

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A 40 g sample of water absorbs 500 calories of energy, how much did the water temp changed?​
Dafna1 [17]

2.99 °C is the change in temperature if a 40 g sample of water absorbs 500 calories of energy.

<h3>What is specific heat capacity?</h3>

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Given data:

m = 40 g

Q = 500 J

Specific heat capacity of water = 4.18 J/g°C

Change in Temperature =?

The formula for Heat Energy is given by:

Q = mcp∆T

where: Q - Heat Energy

m - mass

cp - specific heat

∆T = change in temperature, T_2 - T_1

Solution:

Substituting the value of m, specific heat capacity of water and Q in the formula,

500 J = (40 g)(4.18 J/g°C)(∆T)

∆T = 2.99 °C

Learn more about the specific heat capacity here:

https://brainly.ph/question/7099790

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How much space would one mole of grass take up?
Oduvanchick [21]

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The amount of resistance to a change in motion an object demonstrates is a direct function of its:
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