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2 years ago

How many electrons are in the lowest occupied energy level in a Group 6A element?

Chemistry

2 answers:

zavuch27 [327]2 years ago

5 0

Answer:

Option a. 2

Explanation:

Thinking process:

The electron configuration of an atom always ensures that the lowest level orbital is filled first. The orbitals come in the different sizes and shapes. The first energy levels are made of the s orbitals. These hold two electrons. Next, the p orbitals hold 8 electrons. These are made of the s and p orbital. Then, the next level holds 18 electrons made up of the s, p, and d orbitals. Finally, the next level hold 32 electrons made up of s, p, d, and f orbitals.

kolbaska11 [484]2 years ago

4 0

Answer:

Explanation:

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Dante drew a diagram to show how a wire uses the magnetic field of a magnet to induce an electric current. How can Dante correct

eduard

I got the answer was B because to make a circuit work, you need all of the ends attached. Hope I helped!

8 0

2 years ago

Read 2 more answers

2 moles of a gas have a pressure of 2 atm at a temperature of 300 K. What is the volume of the gas?

qwelly [4]

No of moles=2mol=n
Pressure=2atm=P
Temperature=300K=T
Volume=V

$\\ \tt\hookrightarrow PV=nRT$

$\\ \tt\hookrightarrow V=\dfrac{nRT}{P}$

$\\ \tt\hookrightarrow V=\dfrac{2(8.314)(300)}{2}$

$\\ \tt\hookrightarrow V=8.314(300)$

$\\ \tt\hookrightarrow V=2494.2mL$

$\\ \tt\hookrightarrow V=24.94dm^3$

4 0

1 year ago

Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely througho

Sonja [21]

Answer:

D metallic

Explanation:

The chemical bonding which rises from electrostatic attractive force between the conduction electrons and the positively charged metal ions is called metallic bonding.

<u>It is sharing of the free electrons among the structure of the positively charged ions which are known as cations. </u>

<u>In this type of bonding, these free electrons freely move in the crystal mattice of the metal. </u>

The bonding accounts for properties of metals, such as ductility, strength, electrical and thermal conductivity and resistivity and luster.

6 0

2 years ago

What is the pH of solution if the concentration of [H3O+] = 0.000558?

lina2011 [118]

Answer:

3.25

Explanation:

pH = -log[H3O+]

-log(0.000558)=3.25

7 0

3 years ago

Zn +

saul85 [17]

Answer:

1. Theoretical yield = 2.03g

2. Actual yield 1.89g

Explanation:

Let us write a balanced equation. This is illustrated below:

Zn + 2HCI —> ZnCl2 + H2

Molar Mass of HCl = 1 +35.5 = 36.5g/mol

Mass of HCl from the balanced equation = 2 x 36.5 = 73g

Molar Mass of H2 = 2x1 = 2g/mol

1. From the equation,

73g of HCl produced 2g of H2.

Therefore, 74g of HCl will produce = (74 x 2)/73 = 2.03g

Therefore, theoretical yield = 2.03g

2. %yield = 93%

Theoretical yield = 2.03g

Actual yield =?

%yield = Actual yield /Theoretical yield x100

Actual yield = %yield x theoretical yield

Actual yield = 93% x 2.03 = (93/100)x2.03 = 1.89g

Actual yield =1.89g

4 0

3 years ago