Noble Gases
Which element doesn't belong?
Neon, Radium, Xenon, Argon
Radium
Which element doesn't belong?
Oxygen, Tennessine, Bromine, Fluorine
Oxygen
Which element doesn't belong?
Lithium, Sodium, Calcium, Cesium
Calcium
Which element doesn't belong?
Beryllium, Strontium, Barium, Rubidium
Rubidium
Which element doesn't belong?
Germanium, Cobalt, Titanium, Zirconium
Germanium
Noble gases have __ ionization energies and __ boiling points.
high; low
Halogens exist as __ molecules in their pure form
diatomic
A word used to describe their ductility
soft, malleable
Where alkali earths originally got their names from
Their oxides (beryllia, magnesia, strontia, etc.)
The block name (atomic orbital) where all transition metals lie
d block
Two elements which are used to make lamps and lasers
Neon and Krypton
Why halogens are highly reactive
Incomplete octet (7 valence electrons); high electron affinity
Alkali metals have __ first ionization energies, but __ second ionization energies
low; higher
Oxidation state of elements in this group
+2
The name of the two series of elements that make up the "inner transition metals"
Actinide and Lanthanide series
The only radioactive noble gas
Radon
First halogen discovered (1774)
Chlorine
The name "alkali" was derived from an Arabic word meaning:
ashes, "ashes of the saltwort"
The only element of the group that doesn't react with water
Beryllium
The only elements that produce a magnetic field
Iron, cobalt, and nickel
The electron configuration of Krypton
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6
The electron configuration of Chlorine
1s^2 2s^2 2p^6 3s^2 3p^5
The electron configuration of Potassium
1s^2 2s^2 2p^6 3s^2 3p^6 4s^1
The electron configuration of Magnesium
1s^2 2s^2 2p^6 3s^2
The electron configuration of Nickel
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8