Bienvenidos Científicos!

Today:

1. Correct IV/DV/Constants practice (white handout)

2. Go over States of Matter Simulation (blue handout)

3. Complete Chemistry Basics Mind-Map

PROPERTI

ES

PHYSICALCHEMICAL

• COLOR

• CRYSTAL STRUCTURE

• LUSTER (how shiny or

dull)

• MELTING/BOILING

POINT

• DENSITY

• MALLEABILITY

• SOLUBILITY

• HARDNESS

• FLAMMABILITY

• REACTION TO HEAT

• TOXICITY

• REACTIVITY (with other

elements)

ELEMENTS

Pure

substances

that can’t be

separated

Made of

ELECTRON CLOUD NUCLE

US

zero

ELECTRONS• negative

charge

PROTONS

• positiv

e charge

NEUTRONS

• NO charge

totalcharge

protons = electrons

ELEMENTS

ELEMENTS

Are organized in the Periodic Table based on their properties

and structure.

PERIOD

GROUP or Family

PERIODIC TABLE

Ne10

Atomic Mass

Ato

mic

N

um

ber

20.1797

Average number of protons + neutrons

varystay the same

If th

e symbol is

two le

tters

,

capita

lize on

ly th

e firs

t

Number of protons

Practice • Atomic Number =• Atomic Mass = • Number of Protons=

(same as Atomic #)• Number of Electrons =

(same as # of protons)• Number of Neutrons =

(Atomic mass – atomic number, then rounded to the nearest whole number)

Ca20

40.078

20

40.07820

20

40.078 – 20 = 20.078 ≈ 20