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Savatey [412]
3 years ago
13

Use the periodic table, find the neutral atom that has the same electron configuration as 1s2 2s2 2p6

Chemistry
1 answer:
TiliK225 [7]3 years ago
4 0

Answer:

Option B= neon

Explanation:

The given electronic configuration is of neon. Neon is noble gas with atomic number 10.  The noble gases configurations are used for abbreviated electronic configuration

For example, the atomic number of neon is ten and sodium is eleven. The abbreviated electronic configuration of sodium is written by using the neon abbreviation in following way:

The electronic configuration of neon is given below:

Ne₁₀ = 1s² 2s² 2p⁶

The abbreviated electronic configuration of sodium:

Na₁₁ = [Ne] 3s¹

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Which Statement correctly describes protons
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Answer:

D.  

They have a positive charge and are present in the nucleus of an atom along with the neutrons.

explanation:

Protons have a positive charge.

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3 years ago
Why would an increase in temperatures be detrimental to the tundra? Select all that apply.
ludmilkaskok [199]

Answer:

I think the answers are... b, d, and maybe a. I don't know for sure. So only put these answers in if you trust me!

Explanation:

I had this very question, and I put in what I think were the answers.

3 0
2 years ago
A pressure of 725 mmhg is equal to how many atms
STatiana [176]
0.953948 is what I got from dividing pressure value by 760.
3 0
3 years ago
The vapor pressure of pure acetone (C3H6O) is 216 torr
svetoff [14.1K]

The mole fraction of acetone (C₃H₆O) is 0.333

<h3>Data obtained from the question </h3>
  • Mole of C₃H₆O = 0.1 mole
  • Mole of CHCl₃ = 0.2 mole
  • Mole fraction of C₃H₆O =?

<h3>How to determine the mole fraction </h3>

Mole fraction of a substance can be obtained by using the following formula:

Mole fraction = mole / total mole

With the above formula, we can obtain the mole fraction of C₃H₆O as follow:

  • Mole of C₃H₆O = 0.1 mole
  • Mole of CHCl₃ = 0.2 mole
  • Total mole = 0.1 + 0.2 = 0.3 mole
  • Mole fraction of C₃H₆O =?

Mole fraction = mole / total mole

Mole fraction of C₃H₆O = 0.1 / 0.3

Mole fraction of C₃H₆O = 0.333

Learn more about mole fraction:

brainly.com/question/2769009

6 0
3 years ago
The volume of a Goodyear Blimp is 2.5x10^7 L, which is occupied by 1.7x10^6 mol of helium. What is the internal pressure of the
attashe74 [19]

Answer:

1.7 bar

Explanation:

We can use the <em>Ideal Gas Law</em> to calculate the individual gas pressure.

pV = nRT     Divide both sides by V

 p = (nRT)/V

Data:   n = 1.7 × 10⁶ mol

R = 0.083 14 bar·L·K⁻¹mol⁻¹

T = 22 °C

V = 2.5 × 10⁷ L

Calculations:

(a) <em>Change the temperature to kelvins </em>

T = (22 + 273.15) K

  = 295.15 K

(b) Calculate the pressure

p = (1.7 × 10⁶ × 0.083 14 × 295.15)/(2.5× 10⁷)

  = 1.7 bar

4 0
3 years ago
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