All about Elements
Element that is a liquid metal at STP
What is a Mercury?
Decreases going left to right, increases from top to bottom
What is atomic radius?
Vertical columns going down the periodic table
What are groups
Stable valence electron configuration - Group 18
Noble Gases
2 valence electrons, 3 electron shells
What is Magnesium?
Element that is a liquid non metal at STP
What is Bromine?
There is no value for this group of elements in this trend
What is electronegativity?
7 of these on the periodic table
What are periods?
Dissolves into colored ions
5 valence electrons, 3 electron shells
What is Phosphorus?
Most reactive metal
What is Francium?
This atom has the largest atomic radius
What is Francium?
Right side of the periodic table
What are nonmetals
Lithium, Sodium, Potassium
7 valence electrons, 4 electron shells
What is Bromine?
Most reactive nonmetal
What is Fluorine?
This period 3 element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
What is Sodium?
Antimony, Silicon, Germanium
What are metalloids?
Calcium, Magnesium, Beryillium
What are alkaline earth metals?
5 valence electrons, 5 electron shells
What is Antimony?
Group of elements are gases at STP
What are noble gases?
This increase of this subatomic particle explains why the atom radius decreases across a period
What are protons?
Consistent number down a period
What are valence electrons?
Group with the most electronegative elements
What are halogens?
7 electron shells, 2 valence electrons
What is Radium?