the name for the element with the abbreviation He
What is Helium
the abbreviation of Radon
What is Rn
the abbreviation Li stands for this element
What is Lithium
The abbreviation Fr stands for this element
What is Francium
The abbreviation O stands for this element
This element has 10 protons and 10 electrons
What is Neon
the abbreviation for neon
What is Ne
The abbreviation Na stands for this element
What is Sodium
This element has an atomic number of 19
What is Potassium
The abbreviation for Chlorine
What is Cl
Superman's birth planet and this element, with an atomic number of 36, share the same name.
What is Krypton
the abbreviation Kr stands for this element
What is Krypton
The abbreviation for Potassium is
What is K
This element has an atomic number of 11
What is sodium
Potassium has this many electrons
What is 15
This element has 3 energy levels, or shells
What is Argon
the noble gases are found in this group on the periodic table
What is group 8A or group 18
The abbreviation Rb stands for this element
What is Rubidium
the alkali metals are found in this group on the periodic table of elements
What is group 1 or 1A
The abbreviation Br stands for this element
What is Bromine
This element emits a blue light when placed in an electric field, has 54 protons and electrons and 5 energy levels.
What is Xenon?
The noble gases are not very reactive because of this fact
What is they have a full valence shell
The abbreviation Cs stands for this element
What is Cesium
The Alkali metals are highly reactive because of this fact
what is they need to lose one or gain seven electrons to be stable.
All living organisms are contain this element that is abbreviated C
What is Carbon