Unit III- Periodic Table Flashcards
Alkaline Metals ( Base)
Groups 1A
Alkaline Earth Metals (Base)
Groups 2A
Halogens
Groups 7A
Nobel (Insert) Gas
Groups 8A
Watch Towers
Non Metals
Center
Transition Metals
Left Tower
Main Group Metals
Back Drop of Hell Staircase
Non Metals
Paired Top Left Hell Case
Mataliods
Base of the Hell Case
Main Group Metals
Metals are solid at room temperature and pressure, except…
Magnesium (Hg), Gallium (Ga), & Cesium (Cs)
Metals form Ions by…
loosing electrons
Nonmetals form Ions by…
gaining electrons
Metalloids
Increase conductivity when the temperature increases.
Diatomic molecules
are made up of two atoms, eg. H2, & O2. If they contain the same element, they are considered to be Homonuclear
Polyatomic molecules
Made of three or more elements held together by covalent bonds.
Molecular Elements can exist as a …
Diatomic molecules or Polyatomic molecules
Atomic Number indicates
number of protons in an element
Atomic Mass
Protons + Neutrons (Number at the bottom of the Atomic Symbol)
Isotopic Design A/Z (X) Y
A- Atomic Mass (P+N) Z- Atomic Number (P) X- Atomic Symbol Y- Charge
Atomic Mass Unit (amu)
United used to express the mass of an atom or subatomic particle.
1 amu = 1.661x10-24g
Isotopes
Atomic Mass:
Atomic Number:
Same # protons but diff # neutrons; aka they weigh different.
AM: Different
AN: Same
Ion
a charged particle that forms when a neutral atom gains or loses electrons
Anion
negatively charged - nonmetal gains electrons
Cation
positively charged - nonmetal loses electrons (Cat - Paws - Ion) Only removes electrons to the next noble gas
Ionic charge formula
of protons - # of electrons
Cation Size vs. Atom
Cation size is smaller than an Atom. Energy Level ( dwn)
Anion size vs. Atom
Anion size is bigger than original atom
