Chem 5.1-5.2 Flashcards
Where are the alkaline earth metals
Group two
Where are the alkali metals
Group one
Where are the halogens
Group 17
Where are the noble gases
Group 18
where are the transition metals
Groups 3-12
Where is the lanthanide series
4f
Where is the actinide series
5f
Which groups contain representative elements
All s and p block elements
Where are Metalloids located
Touching the staircase-except for Aluminum
Properties of metals
Shiny, malleable, solid at room temp (not mercury). Conductors
Properties of nonmetals
Dull, brittle, solids, gases or liquids (Br) poor conductors
Properties of metalloids
Semi conductors. In between metals and nonmetals
What is hydrogen
Nonmetal
Periodic law
When elements are arranged in order of increasing atomic number there is a regular repetition of their chemical and physical properties
Valence electrons
Electrons in the highest energy level
What do valence electrons directly determine
Chemical properties
Same group means the same number of
Valence electrons, thus same chemical properties
What info is lost when drawing Lewis structure instead of Bohr diagram
Total number of electrons
When forming ions, atoms gain or lose ___________ to get the same number of electrons as their __________________
Electrons, closest noble gas
Octet rule
Desire to gain 8 valence electrons
Why do atoms want same # of electrons as noble gases
To become stable
Atoms in the same _________ form ions with the same ________
Group, charge
