electron configuration
the electron configuration for lithium?
1s2 2s1
how many orbitals are in 3p?
3
define ionization energy
the energy required to lose one valence electron from an atom in its gas phase
*conductors of heat and electricity
*maliable
*ductile
*lustrous
which one has a greater electronegativity Ca or Ga
Ga
the electron configuration for carbon?
1s2 2s2 2p2
how many orbitals are in 6p?
3
define electronegativity
the measure of how strongly an element atracts bonding pairs of electrons to itself
properties of a non-metal
*low boiling point
*brittle
*dull
*good insulators
which one has a greater electronegativity Br or As
Br
what is the noble gas configuration for cadmium?
[kr] 5s2 4d
how many orbitals are in 5d?
5
define atomic radius
the distance in the nucleus to the valence shell
properties of a metalloid
*properties of metals and non-metals
*good semiconductors
which element has the highest first ionization Li or Be?
Be
what is the noble gas configuration for chlorine?
[Ne] 3s2 3d2
how many orbitals are in 7s?
1
what are representative elements ?
groups 1a through 7a
properties of a transition metal and examples
*group b elements
*copper,silver,gold and iron
Au
the electron configuration for scandium
1s2 2s2 2p6 3s2 3p6 4s2 3d1
how many orbitals are in 3s?
1
define what a cation and anion are
cation-when an element loses an electron it forms a positively charged ion known as cation
anion-when an element gains an electron it forms a negatively charged ion knowns as anion
properties of a inner transition metal and examples
*electrons in F orbital
*example uranium
which element has the least metallic character Li, Be, K or Na?
K