Scientists
French Scientist that compiled a list of all elements that were known at the time.
Who is Antoine Lavoisier?
Good Conductors of heat and electricity.
What are Metals?
Metalloid with the symbol Ge
What is Germanium?
Configuration of Neon
What is [He]2s²2p⁶ ?
-2
What is Oxygen?
By arranging the elements in order of Increasing atomic number, solved the problems with the order of the elements in the periodic table.
Who is Henry Moseley?
States that atoms tend to gain, lose or share electrons in order to acquire a full set of eight valence electrons.
What is the Octet rule?
Nonmetal with the symbol Xe
What is Xenon?
Configuration of Lithium
What is [He] 2s1 ?
-3
What is Nitrogen?
Discovered that atoms of each element contain a unique number of protons in their nuclei.
Who is Henry Moseley?
Group 17 of the periodic table that consists of highly reactive elements.
What are halogens?
Metal with the symbol Tl
What is Thallium?
Configuration of Potassium
What is [Ar] 4s¹ ?
-1
What is Bromine?
Each demonstrated a connection between atomic mass and the properties of elements.
Who is Meyer and Mendeleev?
An atom or a bonded group of atoms that has a positive or negative charge.
What is an Ion?
Metal in the Lanthanide series with the symbol Sm
What is Samarium?
Configuration of Argon
What is [Ne] 3s² 3p⁶ ?
What is Magnesium?
Noticed that when the elements were arranged by increasing atomic mass, their properties repeated every eighth element.
Who is John Newlands?
Electrons In an atom’s outermost orbital.
What is a Valence electron?
Metal in the Actinide series with the symbol Th
What is Thorium?
Configuration of Krypton
What is [Ar] 3d¹⁰ 4s² 4p⁶ ?
+4
What is Tin?