LOVE

ANTOINE LAVOISIER(1789)

• He was known as the father of modern chemistry 

• He compiled 23 known elements at the time

• He tried grouping elements into metals and non metals

JOHANN WOLFGANG DOBREINER (1829)

• He observed that certain groups of three elements shared similar chemical properties.

• He attempted to classify elements into triads

EMILE-ALEXANDER BEGUYER DE CHANCOURTOIS(1862)

•  He was the first person to organize elements by atomic weight 

• Elements that appeared above and below each other shared similar periodic properties 

JOHN NEWLANDS

• He was the first to arrange the elements into the periodic table with increasing orders of atomic masses

• He found that ever 8 element had similar properties and called this LAW OF TRIADS

• He arranged the elements but left no gaps for undiscovered elements

LOTHAR MEYER

• He was the first person to recognize the periodic trends in the properties of elements 

• He started working for only 28 elements identical to Mendeleev

DMITIRI MENDELEEV 

• He jotted down the symbols for chemical elements, and put them in order to their atomic weights and inventing the periodic table

• He left gaps for undiscovered elements, and predicted the properties for these missing  elements. (Gallium, Scandium, Germanium) 

HENRY MOSELEY 

• He arranged the periodic table according to atomic numbers

• He realized his findings indicated that the identity of an element is how many protons it has

PROTONS = ATOMIC NUMBERS

GLENN SEABORG

• He proposed the actinides series 

FOOD:

ALL FOOD IS MADE OUT OF

• Protein

• Fats

• Carbohydrates

Carbohydrates

• It provides our bodies with the energy it needs (are your body’s main source of energy)

FIBER

• It helps regulate the body's use of sugar, helping to keep hunger and blood sugar in check.

PROTEIN

• It helps to build tissue and repair your body after damage or stress

FATS 

• Do not raise blood sugar and are needed for good health

LIPIDS 

• It acts as an insulator and aids in absorption of fat soluble vitamins  

UNSATURATED FATS 

• Fats that come from plants and fish. 

SATURATED FATS

• It may increase your (bad) cholesterol

• It is mostly found in animals

TRANS FAT 

• Are artificial fats or industrially produced(factory made) fats, these are not healthy fats.

ELECTRONEGATIVITY

• A chemical property that describes an atom's ability to attract and bind with electrons 

• Is the “tendency”” of an atom to attract shared electrons in a chemical bond

IONIZATION ENERGY

• Is the energy required to remove an electron from an atom

• It is the “amount” of energy required to remove an electron from an atom

ELECTRON AFFINITY

• The amount of electrons released when an electron is added to a neutral atom to form an anion

• It is the energy “change” when the atom gains an electron

ATOMIC RADIUS

• Is determined as half the distance between the nuclei of two identical atoms bonded together.

• The “”mean” or “typical” distance from the center of the nucleus 

METALLIC CHARACTER

• This occurs as the atom readily accepts electrons to fill a valence shell than lose them to the remove the unfilled shell

• They are more likely to be reactive and will give away electrons