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2 years ago

What is the order in which electrons start filling the orbitals?

Chemistry

1 answer:

emmainna [20.7K]2 years ago

4 0

a. 1s 2s 2p 3s 3p 4s 3d 4p is the correct option.

This gives the following order to fill the orbit: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p, (8s, 5g, 6f, 7d, 8p, and 9s)

Aufbau's principle states that electrons fill low-energy atomic orbitals before they fill high-energy atomic orbitals. .. By following this rule, you can predict the electron configuration of an atom or ion.

There may be two electrons at the maximum of one orbit. Since the s subplane has only one orbit, it can hold up to two electrons. The p subplane has three orbitals, so it can hold up to six electrons. The d-subplane has five orbitals, so it can hold up to 10 electrons.

Learn more about electrons here:brainly.com/question/11316046

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When a metal and a non-metal react, the ____ tends to lose electrons and the ____ tends to gain electrons?

valentina_108 [34]

<span>When a metal and a non-metal react, the metal tends to lose electrons and the non metal tends to gain electrons?</span>

8 0

3 years ago

Determine the packing efficiency of a simple cubic unit cell that contains one atom with a metallic radius of 175 pm.

PilotLPTM [1.2K]

Answer:

the packing efficiency is 52.36%

Explanation:

Given the data in the question;

simple cubic unit cell that contains one atom with a metallic radius of 175 pm;

we know that;

Edge length of Simple cubic (a) is related to radius of atom (r) as follows;

a = 2r

since radius r = 175 pm

we substitute

a = 2 × 175 pm

a = 350 pm

Now we get the volume unit;

Volume of unit cell = a³ = ( 350 pm ) = 42875000 pm³

Next we get Volume of sphere;

Volume of Sphere = $\frac{4}{3}$ πr³

Volume occupied by 1 atom = $\frac{4}{3}$ × π × ( 175 pm )³

= $\frac{4}{3}$ × π × 5359375 pm³

= 22449297.5 pm³

Now, the packing efficiency = ( Volume occupied by 1 atom / Volume of unit cell ) × 100

we substitute;

packing efficiency = ( 22449297.5 pm³ / 42875000 pm³ ) × 100

= 0.523598 × 100

= 52.36%

Therefore, the packing efficiency is 52.36%

8 0

3 years ago

The slant of the earth is called what

suter [353]

I think the slant would be called the tilt

8 0

3 years ago

Read 2 more answers

Read the scenario.

irakobra [83]

2H2+O2→2H2O
We have to be aware that the number of atoms are the same on both reactant side and product side.

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3 years ago

Read 2 more answers

What is the mass number of C12,C13 and C14

Elena L [17]

Carbon-13 and Carbon-14 are isotopes of the element carbon. All carbon atoms have 6 protons in their nucleus and most have 6 neutrons. Since the mass number consists of # of protons + # of neutrons, Carbon 12 has an atomic mass of 12 ( = 6 protons + 6 neutrons). Carbon-13 atoms have one extra neutron, giving it a total of 7 neutrons. Carbon-14 atoms have two extra neutrons, giving them a total of 8 neutrons. Therefore the mass number of C-12= 12, C-13= 13 and C-14= 14.

3 0

4 years ago