IPC

what are physical properties

properties that can be measured or observed without matter changing to a different substance

which can usually be detected by your senses

physical properties

what does physical properties include?

melting/boiling point, color, state of matter (liquid, solid gas) hardness, odor, ability to conduct electricity, and the ability to dissolve in other substances

what is density

the amount of mass per unit of volume

tightly packed particles have a…

greater density

loosely packed particles have a…

lesser density

what is chemical properties?

properties that can be observed only when matter undergoes a change to become a kind of matter

what does chemical properties include?

reactivity, flammability the ability to rust

what is chemical change?

when matter changes into an entirely diff substance with different chemical properties

what does chemical change include?

release of bubbles, change of color, production of odor, release of light or heat, production of loud sounds

can chemical changes be undone?

no, chemical changes can’t be undone as it usally results in a different substance

what is physical change?

a change of a matters physical properties

what includes physical change?

change of shape, change of size, change of state

what changes during physical changes

its physical properties but not chemical properties

can physical change be undone?

usually yes, physical changes can usually be undone easily but not always

solid

closley packed together and vibrate → cant easily change shape

liquid

close but not very very packed together and slide past eachother → change shape easily

gas

very spaced out and fill all the “empty” space

what are the two main matter classifications?

mixture or pure substance

what is a pure substance?

a compound or element

what is a mixture?

combinations of pure substances that are NOT chemically bonded together

Homogeneous mixture

a mixture that IS uniform in composition and is the SAME through out can be reffered to as a solutions

Heterogeneous mixture

a mixture that is NOT uniform in composition and is DIFFERENT through out

what us an element

combined into different combinations to form compounds

what is an compound?

has totally different chemical and physical properties then the elements that make them up

what does the arrangement of atoms determine?

the properties of different types of matter and if it is a substance or mixture

what is a size dependent property

mass and volume

what is mass

the amount of matter in an object

what is volume

the amount of space an object occupies

what are the size independent properties

conductivity, melting/ boiling point, density, solubility, and magnetism

conductivity

the ability of matter to conduct or carry along electricity or heat

solubility

the ability of one substance to dissolve another

magnetism

attractive force from metals

who created the modern periodic table

Dmitri Mendeleev 

the atomic weight increases from which direction?

from left to right as you go across the a row then goes to the next row down

how are elements arranged in the periodic table

by atomic weight and number

what do the elements in the same vertical column have in common

chemical properties

true or false when the periodic table was created it was complete and there were no missing elements?

false

true or false the gaps in the periodic table helped scientists predict the missing elements

true

thermal energy

the adding or removing of thermal energy can cause the matter to change forms