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Ghella [55]
3 years ago
13

HELP PLS ILL GIVE BRAINLIEST AND 40 POINTS!!!

Chemistry
1 answer:
Rasek [7]3 years ago
6 0

Answer:

A.? I think it is A hope it helps

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Write the full unabbreviated electrons configuration of the following elements
I am Lyosha [343]

Answer:

Explanation:

Sodium:

Na₁₁ = 1s² 2s² 2p⁶ 3s¹

Iron:

Fe₂₆= 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

Bromine:

Br₃₅ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵

Barium:

Ba₅₆ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s²

Cobalt:

Co₂₇ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁷

Silver:

Ag₄₇ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d¹⁰

Tellurium:

Te₅₂= 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁴

Radium:

Ra₈₈ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s²

7 0
4 years ago
What is the name of this molecule? <br><br> CH3 (single bond) C (triple bond) C (single bond) CH3
Alex777 [14]
CH₃ - C≡C - CH₃

2-butyne or but-2-yne

:)
6 0
3 years ago
What would be the difference in your weight (remember weight is the force of gravity acting on you) if you were 3 times further
AnnyKZ [126]

Answer:

It would be 3 times as much gravity or 7 times

Explanation:

7 0
3 years ago
What is the total probability of finding a particle in a one-dimensional box in level n = 4 between x = 0 and x = L/8?
Lubov Fominskaja [6]

Answer:

P = 1/8

Explanation:

The wave function of a particle in a one-dimensional box is given by:

\psi = \sqrt \frac{2}{L} sin(\frac{n \pi x}{L})

Hence, the probability of finding the particle in the  one-dimensional box is:

P = \int_{x_{1}}^{x_{2}} \psi^{2} dx

P = \int_{x_{1}}^{x_{2}} (\sqrt \frac{2}{L} sin(\frac{n \pi x}{L}))^{2} dx

P = \frac{2}{L} \int_{x_{1}}^{x_{2}} (sin^{2}(\frac{n \pi x}{L}) dx

Evaluating the above integral from x₁ = 0 to x₂ = L/8 and solving it, we have:

P = \frac{2}{L} [\frac{L}{16} (1 - 4\frac{sin(\frac{n \pi}{4})}{n \pi})]

P = \frac{1}{8} (1 - 4\frac{sin(\frac{n \pi}{4})}{n \pi})    

Solving for n=4:

P = \frac{1}{8} (1 - 4\frac{sin(\frac{4 \pi}{4})}{4 \pi})    

P = \frac{1}{8} (1 - \frac{sin (\pi)}{\pi})    

P = \frac{1}{8}

I hope it helps you!

7 0
3 years ago
Why are conductors better than insulators to carry electric current
marysya [2.9K]

Conductors are better than insulators to carry electric current because they give the electricity the ability to flow freely throughout circuits. This helps the insulator to do its job of containing the electric charge. Examples of this would be a tv plug - the rubber surrounding the TV plug helps to keep the conductors (wires) in place, thus helping to facilitate an electric charge.

5 0
3 years ago
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