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Aleks [24]
3 years ago
15

The main energy levels of atom are indicated by the

Chemistry
1 answer:
blagie [28]3 years ago
6 0
In chemistry, the principal energy level of an electron refers to the shell or orbital in which the electron is located relative to the atom's nucleus. This level is denoted by the principal quantum number n. The first element in a period of the periodic table introduces a new principal energy level.

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Three Students: Samantha, Colton and Elizabeth are standing the same distance from an explosion. Samantha wears a blindfold and
marin [14]

The cinematic allows finding that Elizabeth is the first to hear the sound, Samantha is the second person to hear the explosion and Fulton the last, since he has the time in the air plus the transformation time of the sound in the headphones.

When an object explodes, a sound wave of great intensity is produced, this wave propagates through the different media with which it is in contact.

The speed of sound in each medium is given by the expressions

          v = \sqrt{\frac{B}{\rho } }

Where B is the volumetric modulus, ρ the density of the medium.

Sound is a wave so its velocity is constant, so we can use the kinematic relationships for uniform motion

            v = \frac{d}{t}  \\t = \frac{d}{v}

Some values ​​of interest for the speed of sound are

Medium          speed (m / s)

air                          340  

liquid            order of 1500  

Solids           order of 4000

In this exercise, the three students are at the same distance, so Elizabeth who hears the explosion through the ground ( solid) should be the person who first hears it.

For the other two students the time difference must be small, Samantha hears the explosive that is transmitted in the air.

Fulton uses headphones, so the explosion must excite a bugle that transforms the sound into signals for the headphones and again transforms it into audible signals.

The headphones are next to it. The time of the signal is the time in the air plus the time of the electrical signal, so you should hear the sound after Samatha.

In conclusion using the kinematics we can find that Elizabeth is the first to hear the sound and possibly Samantha is the second person to hear the explosion and Fulton the last since he has the time in the air plus the transformation time.

Learn more about sound here:

brainly.com/question/15137350

7 0
1 year ago
The highest energy occupied molecular orbital in the C-C bond of the C2 molecule is?
Butoxors [25]

The highest energy occupied molecular orbital in the C-C bond of the C₂ molecule is 2pπ orbitals.

<h3>What is Molecular Orbital Theory?</h3>

According to this theory,

  • Molecular orbitals are formed by intermixing of atomic orbitals of two or more atoms having comparable energies
  • The number of molecular orbitals formed is equal to the number of atomic orbitals combined.
  • The shape of molecular orbitals formed depends on the type of atomic orbitals combined
  • Only atomic orbitals having comparable energies and the same orientation can intermix
  • Bonding M.O. is formed by the additive effect of atomic orbitals and thus, has lower energy and high stability.
  • Antibonding M.O. is formed by the subtractive effect of atomic orbitals and thus, has higher energy and low stability.
  • Bonding M.O. is represented by \sigma, \pi, \delta while Antibonding M.O. is represented by \sigma^*, \pi^*, \delta^*\\

Molecular Orbital Diagram of C₂

Learn more about Molecular Orbital Theory:

brainly.com/question/17371976

#SPJ4

5 0
1 year ago
Name a Solid, Liquid, and a Gas. Solid: Liquid: Gas:
crimeas [40]

Answer:

Gas - Steam

Solid - Rock

Liquid - Juice

3 0
3 years ago
Read 2 more answers
Help pls!!!!!!!!!!!!!​
UkoKoshka [18]

Answer:

1.   C + O₂ → CO₂

2.  C + CO₂ → 2 CO

3. Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂

4 0
2 years ago
Write the symbol for the monatomic ion that has a charge of 1– and the condensed electron configuration [ne]3s23p6.
Pani-rosa [81]
<span>Answer is: the symbol is Cl.
[Ne ] 3s</span>² 3p⁶ is electric configuration of noble gas argon, neon (Ne) has10 electrons plus 6 electrons in 3s and 3p orbitals. Neutral atom of m<span>onatomic ion that has a charge of 1– has one electron less than argon, so that atom (chlorine) has 17 electrons. Charge of 1- means one electron more for ion: 17 + 1 = 18.

</span>
3 0
3 years ago
Read 2 more answers
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