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2 years ago

Explain, in terms of subatomic particles, why atoms of H-1, H-2, and H-3 are each electrically neutral.

Chemistry

1 answer:

jasenka [17]2 years ago

3 0

The atoms are all electrically neutral because the number of protons is equal to the number of electrons.

<h3>What is electrical neutrality?</h3>

An atom is electrically neutral when the number of protons is equal to the number of electrons.

In the cases of H-1, H-2, and H-3, the nuclides have one electron an one proton. The different mass numbers arise from differences in the number of neutrons. Hence in all cases, the nuclides are electrically neutral.

Learn more about neutral atoms:brainly.com/question/5308494

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What is the measurement for momentum?

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The unit of momentum is the product of the units of mass and velocity.

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When a hydrogen atom makes the transition from the second excited state to the ground state (at -13.6 eV) the energy of the phot

viktelen [127]

Answer : The energy of the photon emitted is, -12.1 eV

Explanation :

First we have to calculate the $'n^{th}'$ orbit of hydrogen atom.

Formula used :

$E_n=-13.6\times \frac{Z^2}{n^2}ev$

where,

$E_n$ = energy of $n^{th}$ orbit

n = number of orbit

Z = atomic number of hydrogen atom = 1

Energy of n = 1 in an hydrogen atom:

$E_1=-13.6\times \frac{1^2}{1^2}eV=-13.6eV$

Energy of n = 2 in an hydrogen atom:

$E_3=-13.6\times \frac{1^2}{3^2}eV=-1.51eV$

Energy change transition from n = 1 to n = 3 occurs.

Let energy change be E.

$E=E_-E_3=(-13.6eV)-(-1.51eV)=-12.1eV$

The negative sign indicates that energy of the photon emitted.

Thus, the energy of the photon emitted is, -12.1 eV

3 0

3 years ago

True or Fase. Every substance has to be classified as either acid or base?

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Answer:

False

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Mass

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The molecular formula =C₆H₁₂O₆

<h3>Further explanation</h3>

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

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H₂O=3.6 g

Required

The molecular formula

Solution

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= 1.12/44 x 8.8

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= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

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(12+2+16)n=180

(30)n=180

n=6

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3 years ago

Concentrations-

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Moles of HCl is 3.47mol

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