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3 years ago

What is the difference between an atom an ion how to determine the charge

Chemistry

1 answer:

Eduardwww [97]3 years ago

4 0

Explanation:

When an atom's outermost orbital gains or loses electrons (also known as valence electrons), the atom forms an ion. An ion with more protons than electrons carries a net positive charge and is called a cation. An ion with more electrons than protons carries a net negative charge and is called an anion

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Answer:

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Explanation:

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2 years ago

Can you help me balance the equations from 1-10 please and thank you.

Korolek [52]

Answer:

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2 years ago

One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transition that begins in the state w

4vir4ik [10]

Answer:

Explanation:

Relationship between wavenumber and Rydberg constant (R) is as follows:

$wave\ number=R\times Z^2\frac{1}{n_1^2} -\frac{1}{n_1^2}$

Here, Z is atomic number.

R=109677 cm^-1

Wavenumber is related with wavelength as follows:

wavenumber = 1/wavelength

wavelength = 253.4 nm

$wavenumber=\frac{1}{253.4\times 10^{-9}} \\=39463.3\ cm^{-1}$

Z fro Be = 4

$39463.3=109677\times 4^2(\frac{1}{n_1^2} -\frac{1}{5^2})\\39463.3=109677\times 16(\frac{1}{n_1^2} -\frac{1}{5^2})\\n_1=4$

Therefore, the principal quantum number corresponding to the given emission is 4.

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3 years ago

Which process is an example of a chemical change?

Ivanshal [37]

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2 years ago

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Which law states that the entropy of the universe is always increasing?

vova2212 [387]

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option B) second law of thermodynamics

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2 years ago

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