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ikadub [295]
3 years ago
14

The part of an atom that is mostly empty space is the

Physics
2 answers:
meriva3 years ago
8 0

The part of an atom that is mostly empty space is the Cloud/Mist/Fog

According to the latest atomic model, the atomic nucleus is surrounded by fog / cloud of electrons

\large{\boxed{\boxed{\bold {Further ~ explanation}}}

Rutherford scientists experimented with firing alpha rays on a thin gold plate. From this experiment, it was found that:

  • 1. Most alpha rays are passed through the gold plate, so it is concluded that most space in the atom has empty space
  • 2. A small number of alpha particles that show there are positively charged particles inside the atom(at this time these particles are called protons located in the atomic nucleus)

From here comes the Rutherford atomic model which states that the initiates are charged particles and negatively charged electrons around the nucleus.

So that from this atomic model it shows most of the volume of atoms filled by electrons and between atomic nuclei and electrons is empty space

According to the latest atomic model, the atomic nucleus is surrounded by fog/cloud of electrons. If there is an incoming beam of light that is fired at the atom, then the light can be forwarded or absorbed into this electron mist/cloud

\large{\boxed {\boxed {\bold {Learn ~ more}}}

the main difference between the Bohr model of the atom and the rutherford model.

brainly.com/question/1528920

The equation between Bohr and Rutherford models

brainly.com/question/1184332

the hypothesis of Thomson's atomic model

brainly.com/question/10943651

Keywords: atomic model, Rutherford, Bohr, atoms, protons, alpha rays, electrons, atomic skin, energy, absorption, energy emission

Ghella [55]3 years ago
5 0
<h3><u>Answer;</u></h3>

Electron cloud

<h3><u>Explanation;</u></h3>
  • <em><u>An atom is the smallest particle of an element that can take part in a chemical reaction. Atom is made up of two parts ; that is the nucleus and the electron cloud. The nucleus contain subatomic particles; protons and neutrons, while the electron cloud contains the electrons.</u></em>
  • <em><u>The electron cloud is the largest part of the atom and is mostly an empty space. Most of an atom is a cloud of electrons surrounding a space called the nucleus with tiny protons and neutrons.</u></em>
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Artyom0805 [142]

Answer:

B

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2 years ago
how do u calculate the kinetic energy of a ball of mass 0.25kg being kicked vertically upwards with a speed of 5m/s​
vfiekz [6]

Answer:

3.125J

Explanation:

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K.E.=1/2(0.25)(5)^2=3.125

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3 years ago
Resonances of the ear canal lead to increased sensitivity of hearing, as we’ve seen. Dogs have a much longer ear canal—5.2 cm—th
krek1111 [17]

Answer:

B. 1700 Hz, 5100 Hz

Explanation:

Parameters given:

Length of ear canal = 5.2cm = 0.052 m

Speed of sound in warm air = 350 m/s

The ear canal is analogous to a tube that has one open end and one closed end. The frequency of standing wave modes in such a tube is given as:

f(m) = m * (v/4L)

Where m is an odd integer;

v = velocity

L = length of the tube

Hence, the two lowest frequencies at which a dog will have increased sensitivity are f(1) and f(3).

f(1) = 1 * [350/(4*0.052)]

f(1) = 1682.69 Hz

Approximately, f(1) = 1700 Hz

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f(3) = 5048 Hz

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7 0
3 years ago
A beaker of mass 1.3 kg containing 2.8 kg of water rests on a scale. A 3.7 kg block of a metallic alloy of density 4600 kg/m3 is
Oksana_A [137]

1) Force read on the upper scale: 33.4 N

2) Force read on the lower scale: 43.0 N

Explanation:

1)

The reading on the upper scale is equal to the net force acting on the block of metallic alloy. The net force is given by:

F=W-B (1)

where

W is the weight of the block (downward)

B is the buoyant force (upward)

The weight of the block is given by

W=mg

where m = 3.7 kg is the mass of the block and g=9.8 m/s^2 is the acceleration of gravity.

The buoyant force is given by

B=\rho_w V g

where

\rho_w=1000 kg/m^3 is the water density

V is the volume of the block

The volume of the block can be written as

V=\frac{m}{\rho_b}

where \rho_b=4600 kg/m^3 is the density of the block.

Substituting everything into eq.(1), we find:

F=mg-\rho_w \frac{m}{\rho_b}g=(3.7)(9.8)-(1000)\frac{1.3}{4600}(9.8)=33.4 N

2)

Here we want to find the force on the lower scale.

The force on the lower scale is equal to the difference between the total weight of the system (given by the weight of the beaker + the weight of the water + the weight of the block) and the upper net force exerted on the upper scale, therefore:

F' = m_B g + m_wg+m_b g - F

where:

m_B=1.3 kg is the mass of the beaker

m_w=2.8 kg is the mass of the water

m_b = 3.7 kg is the mass of the block

F=33.4 N is the upper net force

Substituting and solving, we find:

F'=(1.3+2.8+3.7)(9.8)-33.4=43.0 N

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6 0
3 years ago
And explosion occur 17 km away the time it takes for it sound to reach your ears traveling at 340 m/s is
Mrrafil [7]

Answer:

<h3>t = 100secs</h3>

Explanation:

The following data

Distance x = 17km = 17000m

Speed v = 340m/s

Using the formula to get the time;

2x = vt

t = 2x/v

t = 2(17000)/340

t = 34000/340

t = 100secs

<em>Hence it takes 100seconds for the sound to reach your ears</em>

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2 years ago
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