This is the first element to be discovered by a bankrupt German merchant in 1649 while he was searching for the "philospher's stone"
Phosphorus
100
What is the distance from the center of an atom's nucleus to its outer most electron?
Atomic Radius
100
What is the name of element number 106 and what is the atomic number?
Seaborgium, 106.
100
What are the names of the groups that are the most reactive groups in the s-block of the periodic table of elements?
Alkali Metals, Alkaline Earth Metals
100
What does the term "valence" mean?
Outermost
200
By 1809, this many elements were discovered?
47
200
What is the term that refers to the energy need to remove an atom's electron?
Ionization Energy
200
What element has an atomic mass of 238.
U, Uranium
200
Which group of elements play an important role in living organisms, and are also extremely valuable as strong, structural useful materials AND make up the d-block on the periodic table?
Transitional Metals
200
1S^2 is the electron configuration of what element?
Helium
300
How is the periodic table arranged today?
By atomic number.
300
What is the name of the term when an atom can dissolve in water?
Solubility
300
What is the name of the element with the elemental symbol Zr?
Zirconium
300
The elements boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Ti), belong in which elemental group?
Boron Group
300
What is the electron configuration of Neon?
1S^2 2S^2 2P^6
400
Dmitri Mendeleev classified elements according to their atomic __________?
Weight
400
What is the name of the term that describes how ACTIVE an element is with other elements?
Element reactivity
400
Which element has 42 as its atomic number?
Mo, Molybdenum
400
Which elements belong in the Carbon Group?
Carbon (C), Silicon (Si), Germanium (G), Tin (Sn), and Lead (Pb)
400
Using the "Noble Gas Shortcut", what is the electron configuration of sodium?
[Ne] 3S^1
500
Who is credited for the creation of the periodic table which we use today?
Dmitri Mendeleev
500
Ionization energy ____________ as you go from left to right across a period and ___________ as you go from top to bottom of a family.
Increases, decreases.
500
What element has the elemental symbol Uuu?
Unununium
500
Name the group which contains the elements: Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb), and Bismuth (Bi)
Nitrogen Group (5A)
500
What does the electron configuration of an element reveal about that element?