Introduction To Matter

Question 0

volume

Answer 0

volume- the measure of the size of a body or region in 3D space.

Question 1

matter

Answer 1

matter- anything that has mass.

Question 2

meniscus

Answer 2

meniscus- the curve at a liquid surface by which one measures the volume of a liquid.

Question 3

mass

Answer 3

mass- a measure of the amount of matter in an object. (grams)

Question 4

weight

Answer 4

weight- The measure of gravitational force exerted on an object; its value can change with the location in the universe. (Newtons)

Question 5

inertia

Answer 5

inertia- the tendency of an object to resist change in motion.

Question 6

physical property

Answer 6

physical property- characteristic of a substance that does not involve a chemical change.

Question 7

thermal conductivity

Answer 7

thermal conductivity- rate at which a substance transfers heat.

Question 8

malleability

Answer 8

malleability- ability of a substance to be rolled of pounded into thin sheets.

Question 9

ductility

Answer 9

ductility- it can be hammered into thin sheets

Question 10

density

Answer 10

density- the ratio of mass of a substance to the volume (g/mL or g/cm3)

Question 11

solubility

Answer 11

solubility-the ability of something to dissolve into liquid

Question 12

flammability

Answer 12

flammability- the ability for something to catch fire

Question 13

reactivity

Answer 13

reactivity- a faith in which something is chemical reactive

Question 14

chemical change

Answer 14

chemical change-a change that occurs when one or more substances change into a new substance

Question 15

physical change

Answer 15

physical change- change of matter from one form to another without a change in chemical properties

Question 16

composition

Answer 16

composition- the action of putting objects together

Question 17

states of matter

Answer 17

states of matter- the physical forms of matter including solid, liquid, and gases.

Question 18

condensation point

Answer 18

condensation point- the temperature at which the gas becomes a liquid

Question 19

pure substance

Answer 19

pure substance- is a substance in which there is only one type of particle

Question 20

metal

Answer 20

metal- an element that is shiny and that conducts heat and electricity well

Question 21

element

Answer 21

element

Question 22

nonmetal

Answer 22

nonmetal- an element gnat conducts heat and electricity poorly

Question 23

metalloid

Answer 23

metalloid- elements that. Have properties of both metals and nonmetals

Question 24

atom

Answer 24

atom- the smallest unit of an element that maintains the properties of an element

Question 25

nucleus

Answer 25

nucleus- an atoms central region, made up of protons and neutrons

Question 26

electron cloud

Answer 26

electron cloud- a region around the nucleus of an atom where electrons are likely to be found

Question 27

proton

Answer 27

proton- positively charged particle

Question 28

neutron

Answer 28

neutron- particle with no charge

Question 29

electron

Answer 29

electron- particle with a negative charge

Question 30

atomic mass unit

Answer 30

atomic mass unit- what particles (proton, neutron, electron) are measured in) abbreviated as amu

Question 31

element

Answer 31

element- a pure substance that cannot be separated into simpler substances by physical or chemical means

Question 32

ion

Answer 32

ion- when an atom loses or gains electrons

Question 33

isotope

Answer 33

isotope- when an atom has a different number of neutrons than protons

Question 34

radioactive

Answer 34

radioactive- when there is an unstable isotope that will fall apart

Question 35

atomic number

Answer 35

atomic number- the number of protons in an element's atom

Question 36

atomic mass

Answer 36

atomic mass- number of protons and neutrons

Question 37

period/row

Answer 37

period/row-across the periodic table

Question 38

group/family

Answer 38

group/family- up and down

Question 39

alkali metals

Answer 39

alkali metals- 1st column

Question 40

alkaline

Answer 40

earth metals- 2nd column

Question 41

transition metals

Answer 41

transition metals- 3-12 columns and bottom rows (actinides and lanthanides)

Question 42

boron group

Answer 42

boron group- 13 column

Question 43

carbon group

Answer 43

carbon group- 14th column

Question 44

nitrogen group

Answer 44

nitrogen group- 15th column

Question 45

oxygen group

Answer 45

oxygen group- 16th column

Question 46

halogens

Answer 46

halogens- 17th column

Question 47

noble gases

Answer 47

noble gases- 18th column

Question 48

hydrogen

Answer 48

hydrogen- #1 box

Question 49

Convert metric units

Answer 49

Convert metric units - kilometers, hectometers, deckameters, (base) decimeters, centimeters, millimeters Calculate volume, weight, density - M = DV, V = M/D, D = M/V

Question 50

length

Answer 50

length: ex. meters, weight: newtons, density: g/mL or g/cm

Question 51

Identify physical properties and chemical properties

Answer 51

Identify physical properties and chemical properties - physical property: matter that can be observed or measured without changing the matter's identity. Chemical property: property of matter that describes a substance’s ability to participate chemical reactions.

Question 52

Examples of physical properties and chemical properties

Answer 52

Examples of physical properties and chemical properties - physical: thermal conductivity, ductility, malleability, state, density, solubility. Chemical: flammability, reactivity

Question 53

Calculate mass of an element

Answer 53

Calculate mass of an element - measured in grams Identify number of protons, neutrons, and electrons in an element, ion, and isotope Properties of metals, nonmetals, and metalloids - metals: shiny, ductile, malleable, good conductor of electric current and thermal energy. Metalloids: shiny, brittle, hard, good conductor of electric current. Nonmetals: not shiny, not malleable or ductile, poor conductors of thermal energy and electric current