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1 answer:

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An example of a general formula of an acid is
HCl

This is called as hydrochloric acid or hydrogen chloride.

H represents for the atom of Hydrogen
and Cl represents for the atom of Chlorine

Since their charges are -1, and +1, it's ratio is 1:1

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Compare and contrast an isotope and a neutral atom.

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Answer:

Neutral atoms have the same number of electrons and protons. Atoms of an element that contain different numbers of neutrons are called isotopes. Each isotope of a given element has the same atomic number but a different mass number (A), which is the sum of the numbers of protons and neutrons.

Explanation:

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2. What does mass mean?

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The mass or something is how much room it takes up and its density.

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The energy levels the electron can occupy in the Be3+ ion can be calculated using the energy level equation. A Be3+ ion with an

Alla [95]

Answer:

n = 2

Explanation:

We will solve this problem using the Rydberg equation since all the information is given. One has to be very careful in solving for the energy level becuse the numbers are slightly messy as is solving for n.

When the energy of the transition is given in wavelength it is best to use the Rydberg equation in the form:

1/Lambda = Rh x Z² x ( 1/ n₁² - 1/ n₂²)

Lambda= 30.4 x 10 ⁻⁹ m ( 1nm = 1 x 10⁻⁹ m)

Rh = 10973700 m⁻¹

Z = 4 for Be³⁺

1/(30.4 x 10⁻⁹ )= 10973700 x (16) x (1/ n² - 1/4²)=

0.1873 + 1/16 = 1/ n²

n² = 1/ 0.25

n ² = 4

n= √4 = 2

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3 years ago