Atomic Structure
Name the three parts that make up an atom
Proton, Neutron, and Electron
How many atoms are in the Periodic Table?
118
When was it created?
1869
Which two parts go in the nucleus?
Protons and Neutrons
Left - Atomic Number
Right - Mass
Who created it?
Dmitri Mendeleev
How do you make an atom neutral?
Having the same number of protons and electrons
What are groups and periods?
Periods - all atoms in the period have the same number of electron orbitals. The number of electron orbitals is dependent on the period number
When was atom 118 added?
2016
How do the electron orbitals work?
Two electrons on the first orbital, then the amount of orbitals is based on which period the atom is in
Which parts of the periodic table consists of manmade atoms?
The bottom two rows
What special thing did the creator of the periodic table do?
He left empty spaces for other scientists to add more elements
What else can you call the orbital rings of electrons?
Cloud
What is tantalum named after?
Tantalus
Which properties did the creator of the periodic table predict before they were discovered?
Gallium and germanium