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Margarita [4]
3 years ago
5

What was discovered from the gold foil experiment?

Chemistry
1 answer:
Daniel [21]3 years ago
6 0
Most of the positively charged particles bounced back at a range of angles as they collided with the atoms in the foil; only a few passed straight through the foil. Therefore, scientists discovered<span> that every atom contains a nucleus where its positive charge and most of its mass are concentrated.</span>
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Answer:

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General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Periodic Trends
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Explanation:

The Periodic Trend for Electronegativity is up and to the right of the Periodic Table.

Fluorine is Element 9 and has 9 protons. Radium is Element 88 and has 88 protons. Therefore, Radium has a bigger Zeff than Flourine.

However, since Radium is in Period 7 while Fluorine is in Period 2, Radium has more core e⁻ than Fluorine does. This will create a much larger shielding effect, causing Radium's outermost e⁻ to have less FOA between them. Fluorine, since it has less core e⁻, the FOA between the nucleus and outershell e⁻ will be much stronger.

Therefore, Fluorine would attract an electron more than Radium, thus bringing us to the conclusion that Fluorine has a higher electronegativity.

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