Protons & Neutrons & Electrons, Oh My!
This is the number of protons, neutrons, AND electrons for the element Helium.
This is the most reactive metal in period 4.
What is Potassium?
This mathematical practice changes the atomic mass into the mass number.
What is rounding?
This group is composed of inert gases.
What is Group 8A?
Outside of the hospital, I Cu stands for these elements.
What are Iodine and Copper?
This number on the periodic table always tells the atom's number of protons.
What is the atomic number?
This is the most reactive nonmetal in Period 5.
What is Iodine?
56
What is the mass number of Iron?
The most reactive metals can be found in this group.
What is Group 1A?
The EU (European Union) is named for the same place as the element with the same abbreviation.
What is Europium?
This element has 26 protons and electrons and 30 neutrons.
What is Iron?
These elements do not react with other elements due to their full outer energy level.
What are the Noble Gases? (Group 8A)
The rounded mass number helps find the number of this subatomic particle.
What is the neutron?
All of the elements in this period are filling the third energy level.
What is Period 3?
The statement "Be K I Nd" is made up of these elements.
What are Beryllium, Potassium, Iodine, and Neodymium?
Magnesium has this many neutrons.
What is twelve?
Between Magnesium and Fluorine, which is the most reactive element?
What is Fluorine?
197
What is the mass number of Gold?
This group contains Silicon (Si).
What is Group 4A?
What is Tungsten (W)?
The number of valence electrons increases in this direction on the periodic table.
What is left to right?
This characteristic makes Francium (Fr) more reactive than Radium (Ra).
What is a single valence electron?
251
What is the mass number of Californium (Cf)?
This group contain 3 metals and 3 nonmetals.
What is Group 5A?
This element's symbol comes from its Latin name: HydraGyrum.
What is Mercury (Hg)?