4 years ago

T/F: The electromagnetic force holds negatively charged electrons in orbit around thr positively charged nucleus of an atom

Chemistry

1 answer:

Pachacha [2.7K]4 years ago

7 0

Answer:

Explanation:

Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

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Klio2033 [76]

Carbon Dioxide, water vapor, Argon, and I think neon.

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serious [3.7K]

Answer:

$\large\boxed{\large\boxed{5.00\times 10^{22}atoms/cm^3}}$

Explanation:

You can convert the density into atomic density using the atomic weight and Avogadro's number

A dimensional analysis is very helpful:

$\dfrac{g}{cm^3}\times \dfrac{mol}{g}\times \dfrac{atoms}{mol}=\dfrac{atoms}{cm^3}$

Follow the chain: g cancels with g, mol cancels with mol; at the end, what remains is atoms/cm³, which is what you want.

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$\dfrac{2.33g}{cm^3}\times \dfrac{1mol}{28.09g}\times \dfrac{6.022\times 10^{23}atoms}{mol}=\approx 5.00\times10^{22}atoms/cm^3$

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9. Diamonds and quartz crystals look very similar but diamonds cost considerably

zheka24 [161]

Natural diamonds are made very deep within earth's surface where high temperatures and pressure exist naturally, thus making them much more difficult to obtain, and making them a more expensive option that Swarovski Crystal.

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3 years ago

Determine the mass in grams of 5.00 mol of oxygern. the molar mass of oxygen is 16. g/mol

maks197457 [2]

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Fill in the blanks to complete the idea of the sentences. Write your answers on a separate sheet of paper.

tiny-mole [99]

Explanation:

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