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3 years ago

Please help me

Physics

2 answers:

Helen [10]3 years ago

7 0

Answer:

15 protons and 18 electrons

General Formulas and Concepts:

<u>Chemistry</u>

Reading a Periodic Table
Element Number
Neutral Atoms
Ions

Explanation:

We are given the element P. P is 15 on the Periodic Table, meaning it has 15 protons and 15 electrons (all elements are in neutral form).

P³⁻ ion means the element now has a negative charge of 3. We know protons have a positive charge and electrons have a negative charge. 3- means we will have more electrons than protons.

Therefore, P³⁻ would have 15 protons and <em>18</em> electrons:

15 (+) + 18 (-) = 3 (-)

Digiron [165]3 years ago

3 0

15 protons and 18 electrons

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Given

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$r=\frac{a}{2}$

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$J=\frac{a^4}{6}$

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A 6.00-mH solenoid is connected in series with a 5.0-μF capacitor and an AC source. The solenoid has internal resistance 3.0 Ω w

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Answer:

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