This is our current Periodic Table of Elements
Metallic Properties
- Elements on the Periodic Table change from Metal, to Metalloid, to Non-metal as they go from left to right
- Elements become more metallic as the go from top to bottom
Metal
- A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
- Found on the middle and left side of the Periodic Table
Metalloid
- Properties are intermediate between those of metals and solid non-metals
- Are electrical semiconductors
- Found in between metals and non-metals, separating the two like a staircase
Non-metal
- Does not have the properties of metallic elements, such as malleability
- Usually found in nature as gases or weak, brittle solids
- Found on the right side of the Periodic Table
Reactivity
- The ability of atoms of the element to donate, receive, or share electrons with the atoms of another elements
- From left to right, reactivity decreases
- From top to bottom, reactivity increases
Atomic Radius
- The size of the atom
- The distance from the atomic nucleus to the outermost electron orbital
- From left to right, atomic radius decreases
- From top to bottom, atomic radius increases
Density
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- How compact an atom is
- From top to bottom, density increases
Boiling/Melting Point
- The temperature at which an element boils or melts
- Elements at the centre of the periodic table have the highest boiling/melting point
Electronegativity
- The tendency of an atom to attract electrons in the formation of an ionic bond
- From left to right, electronegativity increases
- From top to bottom, electronegativity decreases
Ionization Energy
- The energy needed to remove electrons from the atom
- From left to right, ionization energy increases
- From top to bottom, ionization energy decreases
Ion Charge
- The charge (positive/negative) of an element
- Depends on their groups
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