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3 years ago

The particles that are found in the mucleus of an atom are

Chemistry

2 answers:

posledela3 years ago

8 0

Protons and neutrons are found inside the nucleus, electrons are found on the outer rings of the atom.

g100num [7]3 years ago

4 0

the answer is protons and neutrons, we find them inside the nucleus (not mucleus) the nucleus is the center of an atom. while electrons are particles that fly around outside the nucleus.

protons are positive while neutrons do not have a charge.

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Calculate the frequency of the light emitted by ahydrogen atom

lesya [120]

Answer: $0.31\times 10^{16}Hz$ .

Explanation:

$E=\frac{hc}{\lambda}$

$\lambda$ = Wavelength of radiation

E= energy

Using Rydberg's Equation:

$\frac{1}{\lambda}=R_H\left(\frac{1}{n_i^2}-\frac{1}{n_f^2} \right )\times Z^2$

Where,

$\lambda$ = Wavelength of radiation = ?

$R_H$ = Rydberg's Constant

$n_f$ = Higher energy level = 4

$n_i$ = Lower energy level = 1

Z= atomic number = 1 (for hydrogen)

Putting the values, in above equation, we get

$\frac{1}{\lambda}=10973731.6m^{-1}\left(\frac{1}{1^2}-\frac{1}{4^2} \right )\times 1$

$\lambda=9.7\times 10^{-8}m$

The relationship between wavelength and frequency of the wave follows the equation:

$\nu=\frac{c}{\lambda}$

where,

$\nu$ = frequency of the wave = ?

c = speed of light = $3\times 10^8ms^{-1}$

$\lambda$ = wavelength of the wave = $9.7\times 10^{-8}m$

$\nu=\frac{3\times 10^8ms^{-1}}{9.7\times 10^{-8}m}$

$\nu=0.31\times 10^{16}s^{-1}=0.31\times 10^{16}Hz$

The frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level is $0.31\times 10^{16}Hz$ .

5 0

3 years ago

In the late 1800,expirements using cathode ray tubesled to the discovery of the

erastova [34]

Experiments with cathode ray tubes led to the discovery of the electron (electrons).

Or I think the t.v

6 0

3 years ago

I need the answers? Pls help!

Vesnalui [34]

Im pretty sure its h2o so like the 2nd one

4 0

3 years ago

When WATER is decomposed(into hydrogen and oxygen), is it broken into ions? If so, what is the charge and identity? Explain Plea

igor_vitrenko [27]

Answer:

It doesn't form ions. Hence, there is no charge and they are identified as molecules.

Explanation:

Molecular formula of water is H20. The decomposition of this molecule can be achieved by electrolysis, as follows

2H20 → 2H2 + O2

As the elements present in this molecule are not stable independently so they cannot exist in elemental form or as ions under normal conditions.

4 0

4 years ago

Which groups on the periodic table contain metalloids?

nasty-shy [4]

C. Groups 13-16 contain metalloids.

If you look on a periodic table, these usually have a different color.

3 0

4 years ago

Read 2 more answers