Periodic Table Flashcards
Who made the second periodic table
Mosely
Based on atomic number
What are the trends for electronegativity?
Increases across
Decreases down
Anion
A negatively charged ion
D block location
Groups 3-13
What is a unique characteristic of actinides
They are radioactive
What is electron affinity?
The amount of desire and atom has for electrons
P block location
Groups 13-18
What is electronegativity
The amount of desire and atom has for electrons IN A COMPOUND
What are the trends of ionization energy?
Increases across
Decreases down
Hydrogen is special because
It has only 1 valance electron
What is a unique characteristic of helium
It has only 2 valence electrons but is still inert
What ionization energy?
Energy register to gain or lose an electron
What are the trends of atomic radius?
Decreases across
Increases down
Cation
A positively charged ion
Electron shielding
Electrons relation to the pull of the nucleus
