Chapter 4.2 Flashcards
Groups of atoms in the periodical table
Main group elements
Noble gases
Transition metals
Lanthanides and actinides
What is the classification based on in the periodical table?
Outermost electrons
Main group elements consists of which groups?
1A to 7A
With the exception of helium, noble gases have______?
Completely filled p subshell.
Transition metals are elements from which groups?
1B-3B, and 8B
Why is group 2B not technically transition metals?
Their d subshells are completely filled and they are not readily willing to lose an electron.
What are the outermost electrons called?
Valence electrons
Can periods have variance in make? (I.e metals, Metalloids, non-metals in the same group?)
Yes.
Noble gases properties
Stable because of completely filled p shells. Filled valence electrons shell.