All in the Family
Which family is the most stable or unreactive?
The Noble Gases
Which element has 2 valence electrons in its 4th electron shell?
Calcium (Ca)
How many core electrons does Krypton have?
18 core electrons
A positive ion is called what?
Cation
Which classification of elements does potassium belong to?
Metal
Which family is shiny, very reactive, and soft?
The Alkaline Earth Metals OR Alkali Metals
Which element has 7 valence electrons in its 5th electron shell?
Iodine (I)
How many core electrons does neutral Bismuth (Bi) have?
78 core electrons
A negative ion is called what?
Anion
Which classification of elements does iodine belong to?
Nonmetal
Which family consists of metals of various reactivity and properties?
The Transition Metals
Which element is in the same period as Na and Ar but only has 4 valence electrons?
Silicon (Si)
What are rows called in the periodic table?
Period
Which classification of elements does tellurium belong to?
Metalloid
Which family is the most reactive?
The Alkali Metals
What element is a transition metal and liquid at room temperature?
Mercury (Hg)
What element has 3 valence electrons and 10 core electrons?
Aluminum (Al)
The columns of the periodic table are also called _______ or __________. (Need both names)
Groups & Families
Which classification of elements has elements that are insulators, dull, and brittle?
Nonmetals
Which family has elements that are all diatomic if not in a compound?
The Halogens
Which element does not form ions and has only 2 electron shells?
Carbon (C)
Which element has 7 valence electrons and 46 core electrons?
Iodine (I)
Elements with the same number of electron shells and similar electron energies are in the same __________.
Period
Which classification of elements has elements with high densities and high melting points?
Metals