what do you do with a dead chemist? barium. by joshua martinez and autumn henderson

*Periodic Table*

1.) Metals, Nonmetals, Metalloids- metals are elements that form cations when compounds of it are in solution and oxides of the elements form hydroxides rather than acids in water. their properties are: solid, shiny, ductile, and ,malleable. The metals are located on the left, the middle, part of the right side, the lanthanide series and the actinide series.

Nonmetals- lacks the characteristics of a metal and that is able to form anions, actidic oxides, acids, and stable compounds with hydrogen. Their properties are: brittle, no malleable or ductile, poor conductors of both heat and electricity, and tend to gain electrons in chemical reactions. Some nonmetals are liquids. Nonmetals are located on the right side of the periodic table and Hydrogen is also a nonmetal.

Metalloids- an element whose properties are intermediate between those of metals and solid nonmetals. Their properties are: metallic appearance, but they are brittle and only fair conductors of electricity. Chemically, they behave mostly as nonmetals. Metalloids are located between the metals and nonmetals.

2.) Protons, Electrons, Neutrons- Protons- are the subatomic particles with a positive charge

Electrons- are the subatomic particles with a negative charge

Neutrons- are a subatomic particle charge of neutral

3.) The Father of The Periodic Table- Dmitri Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered.

Dmitri Mendeleev

4.) Elements on the Periodic Table- as you move from left to right in the period, we see that the reactivity increase. On the other hand, as you move down a group in the nonmetals, the reactivity decreases. The further right and up you go on the periodic table, the higher the electronegativity, the resulting in a more vigorous exchange of electrons.

5.) Groups and Periods of the Periodic Table- Column = Group or Family. 18 columns on the PT. Row = Period. 7 rows on the PT.

6.) Group Names- Group 1: The Alkali Metals, Group 2: The Alkaline Earth Metals, Group 3-12: The Transition Metals, Group 13: Boron Family, Group 14: The Carbon Family, Group 15: The Nitrogen Family Group, 16: The Oxygen Family, Group 17: The Halogens, Group 18: The Noble Gases (The Inert Gases)

*Atomic Number , Atomic Mass , Mass Number*

7.) What Information Does Each Number Tell?- Atomic Number= number of protons / Atomic Mass= number of protons plus neutrons / Mass Number= atomic mass rounded

8.) Atomic Number = # of --- :number of protons

9.) Atomic Mass = # of --- : number of protons plus neutrons

10.) How do you know the number of electrons? If you know the number of protons, you also know the number of electrons.


11.) Drawing and Labeling (electron cloud and nucleus)-

12.) What are Balance Electrons? - electrons in the outermost ring in the atomic structure.

13.) 2,8,8,8,8.......<pattern for drawing an atom

*Balancing Equations*

14.)list elements in the same order on each side.



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