History
Used his model for the cookie lab and when drawing atoms
Who is Niels Bohr?
Group 18, row 1
What is Helium?
Group 14
What is the Carbon Family?
Horizontal rows and vertical columns
What are periods?
Group number that has 5 valence electrons
What is Group 15? or Nitrogen Family?
Father of the Periodic Table
Who is Dmitri Mendeleev?
Group 2, row 4
What is Calcium?
Group 3-12
What are the Transition Metals?
Vertical columns on the periodic table
What are groups?
State of matter of Br
What is a liquid?
Earliest scientist who explained atoms and called them atomos
Who is Democritus?
Group 13, row 4
What is Gallium?
Group 18
What are noble gases?
Electrons on the outermost energy level of an atom
What are valence electrons?
Proved that atoms have a nucleus and protons
Who is Rutherford?
Group 10, period 4
What is Nickle?
Group 2
What are the Alkaline Earth Metals?
Elements in a group have ____________ because they have the same number of valence electrons
What are similar properties?
The type of energy produced when electrons go from an excited state to ground state
What is light/color?
Made the modern day periodic table with atomic number (protons)
Who is Henry Moseley?
Group 18, period 6
What is Radon?
Group 17
What are the Halogens?
The physical and chemical properties of the elements are periodic functions of their atomic numbers
What is periodic law?
Type of elements on the stair step line
What are metalloids?