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alina1380 [7]
2 years ago
13

Which sample contains the fewest atoms? a. 10 g of c b. 10 g of ne c. 10 g of f d. 10 g of n e. 10 g of o

Chemistry
1 answer:
Lerok [7]2 years ago
7 0

The molar mass and the mass of the substance give the moles of the substance. The 10-gram sample of neon (Ne) has the fewest atoms. Thus, option b is correct.

<h3>What are moles?</h3>

Moles of the substance are the ratio of the molar mass and the mass of the substance. The moles of each atom with respect to the Avagadro's number (Nₐ) is given as,

Moles = mass ÷ molar mass

  • Moles of carbon (C) = 10 ÷ 12

= 0.83 Nₐ atoms

  • Moles of neon (Ne) = 10 ÷ 20

= 0.5 Nₐ atoms

  • Moles of fluorine (F) = 10 ÷ 19

= 0.52 Nₐ atoms

  • Moles of nitrogen (N) = 10 ÷ 14

= 0.7 Nₐ atoms

  • Moles of oxygen (O) = 10 ÷ 16

= 0.63 Nₐ atoms

Therefore, option b. 10 gm neon has the fewest atoms.

Learn more about moles here:

brainly.com/question/11884840

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Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments below did not give
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The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct did not give the results described and is denoted as option A.

<h3>What is Thomson “plum-pudding” model?</h3>

This model was proposed by J.J Thomson in which referred an atom as a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge.

This model was incorrect and the Rutherford atomic model was adopted in which he described the electrons orbits about a tiny positive nucleus.

The nucleus contains protons and neutrons instead thereby making it the correct choice.

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The options include the following:

a.The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct.

b.The Rutherford experiment was useful in determining the nuclear charge on the atom.

c.Milikan’s oil-drop experiment showed that the charge on any particle was a simple multiple of the charge on the electron.

d.The electric discharge tube proved that electrons have a negative charge

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1 year ago
Please i need help ……
nasty-shy [4]

Answer:

H2

Explanation:

(l) means liquid

(s) means solid

(g) means gaseous

I hope this helped [:

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