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Mila [183]
3 years ago
13

Atoms have a blank shape. the blank of an atom is made up of

Chemistry
2 answers:
timurjin [86]3 years ago
7 0

<em>Answer:</em>

  • The atom has spherical shape. The nucleus of an atom is made up of protons and neutrons.

<em>Explanation:</em>

  • The shape of an atom depend upon many factors including angular momentum of electrons and electrostatic forces between particles. So mostly the shape of an atom is complex , however in simplest of atoms have spherical shapes.
  • The atom consist of three fundamental particle like protons, neutron and electrons. Proton and neutron are collectively form the nucleus of an atom while electrons revolve around the nucleus.
vodka [1.7K]3 years ago
4 0

complete question:

Atoms have a blank shape. The nucleus of an atom is made up of blank that have a positive charge and blank that have no blank.

Answer:

Atoms have a spherical shape. The nucleus of an atom is made up of proton that have a positive charge and neutron that have no charge. The

Explanation:

Atoms are the fundamental unit of matter that defines the structure of an element. Atoms are the basic unit that makes up an element. Atom consist of proton, neutron and electron.

The atom is regarded as been spherical in shape but it has no defined edges. The nucleus of an atom is where the proton and the neutron of an atom resides. The electron is found at the outer part of an atom. It is known to revolve around the atom.

The proton of an atom is positively charged while the neutron has no charge. The proton and the neutron of an atom contributes immensely to the mass of an atom. In fact it determines the mass of an atom.

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Using the molecular orbital model to describe the bond- ing in F2????, F2, and F2????, predict the bond orders and the relative
masya89 [10]

Answer: F2 : bond order= 1.0

F2+: bond order = 1.5

F2- : bond order = 0.5

Explanation:

1. Starting with F2+

The configuration gives;

F2+ = 9F = 1S2.2S2.2P5

= 9F+ = 1S2.2S2.2P4 (this shows it gives out an electron)

Electronic configuration = σ 1S2σ*1S2σ2S2σ*2S2σ2Pz2 π2Px2 = π2Py2 π*2Px2 = π*2Py1

The number of Electrons = (9*2) – 1 = 18 -1 = 17

Bonding electrons (Nb) = 10

Antibonding electrons (Na) = 7

Bond order = (10-7)/2 = 3/2 = 1.5

Number of unpaired electrons = 1

2. Starting with F2

The configuration gives;

F2 = 9F = 1S2.2S2.2P5

9F = 1S2.2S2.2P5 (this shows no loss of an electron)

Electronic configuration = σ 1S2σ*1S2σ2S2σ*2S2σ2Pz2 π2Px2 = π2Py2 π*2Px2 = π*2Py2

The number of Electrons = (9*2) = 18 electrons

Bonding electrons (Nb) = 10

Antibonding electrons (Na) = 8

Bond order = (10-8)/2 = 2/2 = 1.0

Number of unpaired electrons = 0

3. Starting with F2-

The configuration gives;

F2- = 9F = 1S2.2S2.2P5

10F--= 1S2.2S2.2P6 (this shows an addition of an electron)

Electronic configuration = σ 1S2σ*1S2σ2S2σ*2S2σ2Pz2 π2Px2 = π2Py2 π*2Px2 = π*2Py2 σ*2Pz

The number of Electrons = (9*2) + 1 = 19 electrons

Bonding electrons (Nb) = 10

Antibonding electrons (Na) = 9

Bond order = (10-9)/2 = 1/2 = 0.5

Number of unpaired electrons = 1

To get the order of bond as well as length, we know that;

Bond order directly proportional to 1/ Bond length

Therefore the Ascending Bond length = F2+ ˂ F2 ˂ F2-

3 0
3 years ago
A rock climbing group reached the top of Mount Everest in the Himalayan mountains. Mount Everest is about 29,000 feet above sea
Maslowich

Answer:

Two tectonic plates had the same density and a collision of the plates pushed the advancing plate that contained fossilized marine organisms upward forming the Himalayan mountains and Mount Everest.

7 0
3 years ago
2C2H2(g)+5O2(g)=4CO2(g)+2H2O(g)
balandron [24]

The volume of ethyne, C₂H₂ required to produce 12 moles of CO₂ assuming the reaction is at STP is 134.4 L

<h3>Balanced equation</h3>

2C₂H₂(g) + 5O₂(g) --> 4CO₂(g) + 2H₂O(g)

From the balanced equation above,

4 moles of CO₂ were produced by 2 moles of C₂H₂

<h3>How to determine the mole of C₂H₂ needed to produce 12 moles of CO₂</h3>

From the balanced equation above,

4 moles of CO₂ were produced by 2 moles of C₂H₂

Therefore,

12 moles of CO₂ will be produce by = (12 × 2) / 4 = 6 moles of C₂H₂

<h3>How to determine the volume (in L) of C₂H₂ needed at STP</h3>

At standard temperature and pressure (STP),

1 mole of C₂H₂ = 22.4 L

Therefore,

6 moles of C₂H₂ = 6 × 22.4

6 moles of C₂H₂ = 134.4 L

Thus, we can conclude that the volume of C₂H₂ needed for the reaction at STP is 134.4 L

Learn more about stoichiometry:

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3 0
2 years ago
How do scientists test their ideas
-Dominant- [34]
I think it’s B not rlly sure
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2 years ago
80cm^3 of oxygen gas diffused through a porous hole in 50 seconds how long wiil it take 120cm^3 of nitrogen (iv) oxide to diffus
inysia [295]

Answer: it will take 89.93secs

Explanation:Please see attachment for explanation

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