Atomic Interaction Forces Quiz

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Questions and Answers

What force prevents atoms from getting closer at very close distances?

  • Attractive force
  • Coulombic force
  • Gravitational force
  • Repulsive force (correct)

What type of energy is associated with a force that pushes atoms apart?

  • Attractive energy
  • Repulsive energy (correct)
  • Potential energy
  • Kinetic energy

What happens when the distance between two atoms is less than the equilibrium distance?

  • The atoms become neutral.
  • The attractive energy decreases.
  • The net force is repulsive. (correct)
  • The net force is attractive.

Which equation represents the net force between interacting atoms?

<p>$F_N = F_A + F_R$ (A)</p> Signup and view all the answers

What is the result of increasing $r$, the distance between two atoms?

<p>Both attractive and repulsive energies increase. (A)</p> Signup and view all the answers

What causes the attraction between atoms?

<p>Coulombic force (C)</p> Signup and view all the answers

When is the attractive force considered dominant?

<p>When the atoms are very far apart (A)</p> Signup and view all the answers

At what condition do atoms begin to repel each other?

<p>When their distance becomes less than the equilibrium distance (B)</p> Signup and view all the answers

What occurs when two atoms are brought close together from a position of infinite separation?

<p>Both attractive and repulsive forces act on each other. (B)</p> Signup and view all the answers

What happens to the forces between atoms as they get closer than the equilibrium distance?

<p>The repulsive force becomes strong. (B)</p> Signup and view all the answers

Which equation correctly represents the total energy of two interacting atoms?

<p>$E_N = E_A + E_R$ (B)</p> Signup and view all the answers

What is the preferred state for atoms in a solid regarding their distance from each other?

<p>Atoms are held at preferred or equilibrium distances. (C)</p> Signup and view all the answers

What can be inferred about the outer electron shells of two approaching atoms?

<p>They begin to overlap, leading to repulsion. (A)</p> Signup and view all the answers

What type of forces are responsible for holding solid materials together?

<p>Interatomic forces including both attractive and repulsive. (A)</p> Signup and view all the answers

When considering bonding models, what happens to interactions at larger distances?

<p>Interactions become negligible. (B)</p> Signup and view all the answers

Which subshell allows for up to 10 electrons?

<p>d subshell (C)</p> Signup and view all the answers

At which energy level does the p subshell first appear?

<p>n = 2 (B)</p> Signup and view all the answers

What is the shape of the s subshell?

<p>Spherical (C)</p> Signup and view all the answers

Which energy level consists of s, p, and d subshells?

<p>n = 3 (D)</p> Signup and view all the answers

How many electrons can the p subshell hold?

<p>6 (C)</p> Signup and view all the answers

Which of the following correctly describes the f subshell?

<p>Has complex shapes and can hold a maximum of 14 electrons. (C)</p> Signup and view all the answers

Which subshell is present in every energy level?

<p>s subshell (C)</p> Signup and view all the answers

Electrons that are farther from the nucleus generally have:

<p>Higher energy levels (B)</p> Signup and view all the answers

What defines covalent bonding in terms of electron involvement?

<p>Electrons are shared between adjacent atoms. (A)</p> Signup and view all the answers

Which of the following molecules is an example of covalent bonding?

<p>Methane (CH4) (D)</p> Signup and view all the answers

Which statement about metallic bonding is true?

<p>Valence electrons drift freely throughout the metal structure. (B)</p> Signup and view all the answers

What characteristic distinguishes covalent bonds from ionic bonds?

<p>Covalent bonds form through electron sharing, whereas ionic bonds involve electron transfer. (C)</p> Signup and view all the answers

What is meant by the term 'sea of electrons' in metallic bonding?

<p>Delocalized valence electrons that are not associated with any specific atom. (C)</p> Signup and view all the answers

Which of the following best describes a characteristic of covalent bonding?

<p>Covalent bonds exhibit a specific directional behavior. (B)</p> Signup and view all the answers

How many valence electrons do metallic materials typically possess?

<p>One, two, or at most three valence electrons. (B)</p> Signup and view all the answers

Which of the following elements is commonly associated with covalent bonding in its solid forms?

<p>Carbon (C) (D)</p> Signup and view all the answers

What occurs at equilibrium when the attractive and repulsive forces balance?

<p>The net force is zero. (B)</p> Signup and view all the answers

Which type of bonding involves the delocalization of valence electrons?

<p>Metallic bonding (D)</p> Signup and view all the answers

In ionic bonding, the attraction between ions is primarily due to which of the following?

<p>Electrostatic attraction (B)</p> Signup and view all the answers

Which ion is formed when sodium loses one electron?

<p>Sodium ion (Na+) (B)</p> Signup and view all the answers

What role do valence electrons play in ionic bonding?

<p>They are transferred from one atom to another. (B)</p> Signup and view all the answers

Which statement accurately describes the repulsive force in atomic bonding?

<p>It increases as atoms are brought closer together. (A)</p> Signup and view all the answers

What type of elements are typically involved in ionic bonding?

<p>Both metallic and non-metallic elements (D)</p> Signup and view all the answers

What does the energy at the minimum point represent in atomic bonding?

<p>The energy required to separate two atoms to infinite separation (B)</p> Signup and view all the answers

What type of bonding is characterized by relatively weak interactions with bonding energies around 10 kJ/mol?

<p>Secondary bonding (A)</p> Signup and view all the answers

What arrangement forms a dipole in an atom or molecule?

<p>Two equal and opposite charges separated by a distance (D)</p> Signup and view all the answers

What primarily influences the attractive force in Van Der Waals bonding?

<p>Coulombic attraction between dipoles (A)</p> Signup and view all the answers

Which quantum number determines the shape of an electron orbital?

<p>l (C)</p> Signup and view all the answers

According to the Pauli exclusion principle, how many electrons can occupy a single electron state?

<p>Two, with opposite spins (B)</p> Signup and view all the answers

What factor significantly influences the attractive, repulsive, and net energies in interatomic interactions?

<p>Interatomic separation (B)</p> Signup and view all the answers

In metallic bonding, what is said to create a 'sea of electrons'?

<p>Valence electrons moving freely (A)</p> Signup and view all the answers

What results from the transference of valence electrons in ionic bonding?

<p>Forming charged ions (D)</p> Signup and view all the answers

Flashcards

Electron Subshells

Different types of orbitals within an energy level of an atom, where electrons reside.

s, p, d, f Subshells

Different types of electron orbitals, each with a unique shape and electron capacity.

Energy Level (n)

Distinct energy states for electrons in an atom, denoted by integers (n=1, 2, 3...).

s Subshell Shape

Spherical orbital shape, holding a maximum of 2 electrons.

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p Subshell Shape

Dumbbell-shaped orbital, holding up to 6 electrons.

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d Subshell Shape

More complex orbital shape (clover-like), holding up to 10 electrons.

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Electron Energy Levels

Electrons closer to the nucleus have lower energy; farther electrons have higher.

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Atomic Energy Levels and Subshells

Energy levels are divided into subshells (s, p, d, f) according to the electron's energy and position.

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Atomic Bonding Forces

Forces that hold atoms together in a solid.

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Coulombic Force

Attractive force between positive and negative charges.

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Net Force

Combination of attractive and repulsive forces between atoms.

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Repulsive Force

Force pushing atoms apart at short distances.

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Attractive Force

Force pulling atoms together at larger distances.

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Equilibrium Distance

Distance where attractive and repulsive forces balance.

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Atomic Bonding Energies

Energy associated with the forces holding atoms together.

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Why do atoms attract?

Atoms attract due to the coulombic force between positive and negative charges.

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Interatomic Forces

The forces of attraction and repulsion between atoms.

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Attractive Force

The force that pulls atoms together.

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Repulsive Force

The force that pushes atoms apart.

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Net Force (FN)

The overall force on an atom, calculated by combining attractive and repulsive forces.

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Equilibrium Distance (r0)

The separation between atoms where the net force is zero.

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Interatomic Potential Energy

Energy associated with the interaction between atoms.

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Attractive Energy (EA)

Energy associated with the attractive force between atoms, decreases as distance gets smaller.

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Repulsive Energy (ER)

Energy associated with the repulsive force between atoms, increases as distance gets smaller.

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Atomic Bonding Forces

Atoms attract when stretched and repel when compressed. The net force is the sum of attractive and repulsive forces.

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Ionic Bonding

Transfer of valence electrons between metallic and non-metallic elements, creating oppositely charged ions attracted to each other.

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Primary Bonding

Strong chemical bonds between atoms including ionic, covalent, and metallic.

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Coulombic Forces

Electrostatic forces of attraction between oppositely charged ions.

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Net Force

Resultant force from the combination of attractive and repulsive forces in bonding.

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Equilibrium Bond Length

Distance between two atoms where attractive and repulsive forces are balanced, resulting in minimum potential energy.

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Energy at minimum point

Energy required to separate the atoms to an infinite distance.

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Covalent Bonding

Sharing of valence electrons between atoms, often directional

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Secondary Bonding

Weak bonds between atoms or molecules, typically 10 kJ/mol.

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Van Der Waals Forces

Forces arising from temporary dipoles, causing weak attraction between molecules.

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Dipole

A molecule with separated positive and negative charges.

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Bonding Energy

Energy required to break a bond between atoms or molecules.

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Interatomic Bonds (Primary)

Strong bonds, e.g., ionic, covalent, and metallic, holding atoms together in solids.

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Ionic Bond

Electron transfer creating charged ions and attraction between opposite charges.

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Covalent Bond

Electron sharing between atoms.

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Metallic Bond

Valence electrons forming a 'sea of electrons' around metal ions.

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Ionic Bonding

Atoms transfer electrons to achieve stable electron configurations, creating oppositely charged ions that attract.

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Covalent Bonding

Atoms share electrons to achieve stable electron configurations. Each atom contributes at least one electron.

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Covalent Bonding Directionality

Covalent bonds have specific directions, limiting possible atomic arrangements.

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Metallic Bonding

Valence electrons are shared throughout the metal, forming a "sea" of electrons that surround positively charged ions.

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Metallic Valence Electrons

Metals have 1,2, or 3 valence electrons that are mobile.

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Ion cores

The remaining non-valence electrons and nuclei form positively charged particles in metals.

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Sea of electrons

A model of metallic bonding in which valence electrons are considered to move freely through the metal.

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Metallic bond

The electrostatic attraction between positively charged ions and the surrounding 'sea' of free-moving electrons in a metal.

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