Elements
Element symbol for C
What is Carbon?
Has 8 protons, 8 electrons, and 8 neutrons
What is Oxygen?
Used his model for the cookie lab and when drawing atoms
Who is Niels Bohr?
Horizontal rows and vertical columns
An element that has the same atomic number but different numbers of neutrons
Element symbol for Na
What is Sodium?
Has 11 protons, 11 electrons, and 12 neutrons
What is Sodium?
Father of the Periodic Table
Who is Dmitri Mendeleev?
Group 2, row 4
What is Calcium?
Group that has 2 valence electrons
Element symbol for Pb
What is Lead?
Has 19 neutrons, 19 electrons, and 20 neutrons
What is Potassium?
Earliest scientist who explained atoms and called them atomos
Who is Democritus?
Group number that has 5 valence electrons
Group 15
Row 4, group 17
What is Bromine?
Has 35 neutrons
What is Copper?
Proved that atoms have a nucleus and protons
Who is Rutherford?
This group is considered to have perfect atoms
Group 18
Electrons absorb energy and move to a higher energy level
What is excited state?
Element symbol for Sn
What is Tin?
Has 61 neutrons
What is Gold?
Made the modern day periodic table with atomic number (protons)
Who is Henry Moseley?
The modern periodic table is organized by what two major concepts
What is properties and orbitals?
Element that has a teal color (greenish blue)
What is Copper?