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PERIODIC TABLE - Coggle Diagram
PERIODIC TABLE
how many elements have in science?
WATER
FIRE
AIR
EARTH
ions
how positive ions are formed
after loses outer
what are ions
electrons have a negative charge
atoms have no overall charge
Atom structue
electron shells
second shell
max of 8 electrons
third shell
max of 8 electrons
first shell
can hold a mas of 2 electrons
what does an atom have?
it have 3 subatomic particles
neutrons
have a mass and no charge
electrons
have negligible mass and a negative charge
protons
has a mass of 1 and no charge
physical and chemical property
chemical property
are determined by a substance's ability to react with other substances
examples
the ability to react with air
tarnish
rust
corrode
rot
physical property
are determined by using of the five senses
they are a description of an object
examples
color
taste
smell
mass
density
physical and chemical chnges
chemical change
a charge that occurs that causes the identity of a substance to charge ; something new is formed
new substances with new properties are formed
physical change
a charge that occurs without changing the identity of the substance
no new substances are fromed
Density
what is the formula to find density?
density=mass/volume