This is the name for the rows on the periodic table.
What is periods
Isotopes have a different number of these.
Neutrons
He
Helium
Creator of the periodic table.
Mendeleev
How many Valence electrons does Oxygen have
6
This is the name of the columns on the periodic table.
What is Groups/Families
All isotopes have the same number of these.
Protons/Electrons
Mn
Manganese
Created the plum pudding model
JJ Thompson
How many energy levels does sodium have
3
The name of group 1 elements.
What is Alkali Metals
An isotope has 15 protons, 15 electrons, and 17 neutrons. What is number for the isotope
32
Kr
Krypton
Created the gold foil experiment
Rutherford
Atomic mass is made up of what
Protons/Neutrons
The name of group 17 elements
What is Halogens
Which is the heaviest isotope
C-12
C-13
C-14
C-14
Ag
Gold
Who came up with the idea of atoms
Democritus
Who created the 2d model view of the atom we use today
Bohr
This is the other name for semiconductors.
What are metalloids
True/False
There are 10 electrons in the isotope O-10
False
W
Tungsten
This guy came up with atomic theory.
John Dalton
What is the only liquid metal on the periodic table
Mercury