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2016 1st Part of PT

Review of the periodic table

Number of groups on periodic table 18
Number of periods on the periodic table 7
Group 2/ 2A elements Alkali Earth Metals
Can be hammered without breaking malleable
Group 18/ 8A elements Noble gases
first periodic table arranged elements by ____________ increasing atomic mass
Shatters when hammered brittle
number of protons atomic number
current periodic table arranges elements by _________ increasing atomic number
change in number of electrons ion
change in number of protons a different element
change in number of neutrons isotope
can be formed into wires ductile
aka poor conductor of heat and/or electricity insulator
has properties of both metals and nonmetals metalloid
these make up the majority of the periodic table metals
subatomic particle with a negative charge electron
subatomic particle with a neutral charge neutron
subatomic particle with a positive charge proton
the 2 subatomic particles found in the nucleus; the mass protons & neutrons
the 2 subatomic particles in equal numbers if atom is neutral protons & electrons
subatomic particle responsible for the volume & chemical properties electrons
Group 1/1A elements Alkali Metals
Group 17/7A elements Halogens
overall charge of atom zero (neutral)
charge of the nucleus only positive
another name for metalloids semi-conductors
ability to reflect light shiny
does not reflect light dull
ability to attract electrons from another atom electronegativity
most electronegative element in the representative groups F
element with largest atomic size in the representative groups Fr
Parts of periodic table that are NOT representative Group 18 , d block , f block
elements that are liquids at room temperature Hg , Br
block that Helium belongs to s
The top row of the f block is in this period 6th
The bottom row of the f block is in this period 7th
The most electronegative group/family Halogens
electrons closest to the nucleus of an atom core
electrons furthest away from the nucleus of an atom valence
Created by: cadetjt