Elements Sheet
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- Definition: Elements
- atoms of all the same kind that cannot be broken down by ordinary chemical means
- Number of elements known to exist
- 115
- Which elements are synthetic and radioactive?
- #43, #61, all after Uranium
- which groups is mainly combined?
- group IA
- give an example of uncombined
- H
- molecules
- 2 or more atoms coevalently combined
- List the 7 diatomics
- I, Br, Cl, F, O, N, H
- Group IA
- Alkali Metals
- Group IIA
- Alkaline Metals
- Group VIIA
- Halogens
- Group O
- Noble Gases
- Group 3-11
- Transition Elements
- GROUPS OR FAMILIES
- DOWN
- PERIODS OR ROWS
- ACROSS
- Row 6
- Lanthanide Senes
- Row 7
- Actiniede Senes
- List Metalloids
- B, Si, Ge, As, Sb, Te, At
- Where are Metals on the PTOE
- left of the staircase
- Properties of Metals:
-
A. Luster (Shine)
B. Good conductors of heat/electricity
C. Malleable
D. Ductile
E. High Melting Point/Boling Point - Where are Nonmetals on the PTOE
- right of staircase
- Properties of Nonmetals:
-
A. No Luster
B. Poor conducters of hear/ electricity
C/D. Brittle
E. Low Melting Point/ Boiling Point