Classification
Columns on the Periodic Table are called:
Group or family
Type of element that is usually a gas or a brittle solid at room temperature, not malleable or ductile and is a poor conductor of heat and electricity.
NON-METAL
Elements in the same ______________ share similar reactivity (chemical properties).
Group or Family
Name and symbol of the Alkali metal on period-3
Sodium (Na)
This element is in period 3 and is a Chalcogen.
Sulfur (S)
ROWS on the Periodic table are called:
TYPE of element that is typically a shiny solid and is a good conductor of heat and electricity.
METAL
Non-metals in group 18; they are inert (not reactive).
Noble Gases
Name and symbol of the Alkali Earth metal with 3-energy shells
Magnesium
This element has 3 energy shells and is a halogen.
Chlorine (Cl)
Total number of groups ____ and periods____ in the Periodic Table.
18 groups, 7 periods
Elements that are shiny solids, medium conductors of electricity. They are located along the "staircase".
METALLOIDS
Family name for the most reactive metals; they belong to group 1.
Alkali Metals
Name and symbol of the element from the Boron family, with 2-energy shells
Boron (B)
Metalloid in the Chalcogen family.
Polonium (Po)
This is what an element's PERIOD determines.
The total number of energy levels
Family name for the most reactive group of non-metals; they belong to group 17.
Halogens
Family name for elements on Group-2
Alkali Earth Metals
Name and symbol of the element from the Carbon family with 3-energy shells
Silicon (Si)
Halogen with 5 energy shells
Iodine (I)
Elements in the same ___________ have the same number of valence electrons.
Family or Group
Metals whose valence electrons must be calculated from the electron configuration.(Groups 3-12)
Transition Metals
Family name of non-metals in group 17
Halogens
Name and symbol of the element from the Nitrogen family with 3-energy shells
Phosphorous (P)
Metalloid in the Halogens family
Astatine (At)