Matter-Models and Explanation

studied byStudied by 6 people
0.0(0)
Get a hint
Hint

what is matter?

1 / 29

30 Terms

1

what is matter?

 Anything that has mass and takes up space.

New cards
2

who rejected Democritus idea about atoms?

Aristotle

New cards
3

what does Heisenberg Uncertainty Principle state?

It states that it is impossible to simultaneously know the exact position and momentum of an electron.

New cards
4

what is the arrangement of atoms in crystalline solids?

Atoms arranged in a highly ordered structure, forming a crystal lattice (e.g., salts, diamonds).

New cards
5

what are orbitals?

Regions in space where the probability of finding an electron is high

New cards
6

why are solids incompressible?

Particles arranged in fixed positions and in a regular pattern

New cards
7

describe the arrangement of particles in liquids?

Particles are close but not packed and  Particles can slide over each othe

New cards
8

describe the arrangement of particles in gasses?

Particles have a large gap between them

New cards
9

what happens in melting?

Solid becomes liquid.

New cards
10

what is deposition?

 Gas to solid without becoming liquid

New cards
11

what is sublimation?

Solid becomes gas without passing through the liquid phase.

New cards
12

what is density?

Density is the measure of how compact the mass in an object/substance is.

 Mass per unit volume

New cards
13

what is buoyancy?

Buoyancy is the upward force exerted by a fluid (liquid or gas) on an object immersed in it.

New cards
14

what does Archimedes principle state ?

Archimedes’ Principle states: "Any object completely or partially submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object."

New cards
15

what are Van der waal’s forces?

Weak attractions between all atoms and molecules.

New cards
16

what are amorphous solids?

They lack a long-range order in atomic structure (e.g., glass, plastics).

New cards
17

state few mechanical properties of metals?

Strength, ductility, hardness, toughness.

New cards
18

state thermal properties of metals?

Conductivity, expansion.

New cards
19

state electrical properties of metals?

Conductivity, resistivity.

New cards
20

what are composite materials?

Combinations of two or more materials to enhance properties (e.g., fiberglass, concrete).

New cards
21

what does Heisenberg Uncertainty Principle state?

It States that it is impossible to simultaneously know the exact position and momentum of an electron.

New cards
22

what are dipole-dipole interactions?

Attractions between polar molecules.

New cards
23

what is hydrogen bonding?

Strong type of dipole-dipole interaction involving hydrogen and electronegative atoms like O, N, or F.

New cards
24

what are ionic bonds?

Transfer of electrons from one atom to another.

New cards
25

what are covalent bonds?

Sharing of electron pairs between atoms.

New cards
26

what are metallic bonds?

Delocalized electrons shared among metal atoms.

New cards
27

what is latent heat of vaporisation?

 Heat required to change a liquid to a gas.

New cards
28

what is temperature?

Measure of the average kinetic energy of particles.

New cards
29

what is latent heat of fusion?

 Heat required to change a solid to a liquid

New cards
30

what is latent heat?

Heat required for a phase change without a change in temperature

New cards

Explore top notes

note Note
studied byStudied by 7 people
... ago
5.0(1)
note Note
studied byStudied by 11 people
... ago
5.0(1)
note Note
studied byStudied by 182 people
... ago
5.0(2)
note Note
studied byStudied by 8 people
... ago
5.0(1)
note Note
studied byStudied by 4 people
... ago
4.0(1)
note Note
studied byStudied by 35 people
... ago
5.0(1)
note Note
studied byStudied by 25 people
... ago
5.0(1)
note Note
studied byStudied by 210 people
... ago
4.8(5)

Explore top flashcards

flashcards Flashcard (33)
studied byStudied by 21 people
... ago
5.0(1)
flashcards Flashcard (25)
studied byStudied by 5 people
... ago
5.0(2)
flashcards Flashcard (106)
studied byStudied by 4 people
... ago
5.0(1)
flashcards Flashcard (140)
studied byStudied by 4 people
... ago
5.0(1)
flashcards Flashcard (22)
studied byStudied by 28 people
... ago
5.0(2)
flashcards Flashcard (132)
studied byStudied by 13 people
... ago
5.0(1)
flashcards Flashcard (24)
studied byStudied by 1 person
... ago
5.0(1)
flashcards Flashcard (24)
studied byStudied by 153 people
... ago
5.0(2)
robot