Question

1. other than periods and groups how else is the periodic table divided? fill out the table below. family name (or section name) 3 examples of elements in this family/ section # of e in last shell (if number changes put \varies\) characteristics of this family/ section are they solid, liquid, or gases at room temperature? alkali metals alkaline earth metals halogens noble gasses transition metals

Explanation:

Alkali metals: Examples are lithium (Li), sodium (Na), potassium (K). They have 1 electron in the last shell. They are highly reactive, soft - metals, and solids at room temperature.
Alkaline Earth Metals: Examples are beryllium (Be), magnesium (Mg), calcium (Ca). They have 2 electrons in the last shell. They are reactive, harder than alkali metals, and solids at room temperature.
Halogens: Examples are fluorine (F), chlorine (Cl), bromine (Br). They have 7 electrons in the last shell. They are highly reactive non - metals, exist as gases (F, Cl), liquid (Br) and solid (iodine) at room temperature.
Noble Gases: Examples are helium (He), neon (Ne), argon (Ar). They have 8 electrons in the last shell (2 for He). They are very unreactive gases at room temperature.
Transition Metals: Examples are iron (Fe), copper (Cu), silver (Ag). The number of electrons in the last shell varies. They are good conductors of heat and electricity, malleable and ductile, and solids at room temperature.

Answer:

Family name (or section name)	3 examples of elements in this family/section	# of e in last shell (if number changes put "varies")	Characteristics of this family/section	Are they solid, liquid, or gases at room temperature?
Alkaline Earth Metals	Beryllium (Be), Magnesium (Mg), Calcium (Ca)	2	Reactive, harder than alkali metals	Solid
Halogens	Fluorine (F), Chlorine (Cl), Bromine (Br)	7	Highly reactive non - metals	Gas (F, Cl), Liquid (Br), Solid (Iodine)
Noble Gasses	Helium (He), Neon (Ne), Argon (Ar)	8 (2 for He)	Very unreactive	Gas
Transition Metals	Iron (Fe), Copper (Cu), Silver (Ag)	Varies	Good conductors, malleable, ductile	Solid