Definitions
The number of protons in an atom
What is Atomic Number
If the mass number is 31, and the number of neutrons is 16, and there are 15 protons. Which means the atomic number is __________.
What is 15
Nitrogen has this many energy levels.
What is 2.
This man organized the 1st Periodic Table.
What is Mendeleev.
Each member of this family has 3 valence electrons.
What is the Boron Group.
The sum of the protons and neutrons in the nucleus of a cell.
What is Mass Number.
With a mass number of 70 and an atomic number of 32. There are ____________ neutrons in the nucleus.
What are 38.
Oxygen has this many energy levels.
What is 2.
The periodic table is arranged with the increasing of this number.
What is the atomic number.
This group contains a mix of element types all with 4 valence electrons.
What is the Carbon Group.
Electrons that are in the highest energy level of an atom.
What are Valence Electrons.
If nitrogen has a mass number of 15, we know that the atom has _____electrons and ________ neutrons.
What is 7 electrons and 8 neutrons.
This is the maximum number of electrons in the 3rd energy level.
What is 18.
These are the rows and columns in the periodic table.
What are periods and groups.
All the reactions that occur in your body are controlled by compounds belonging to this group.
What is the Carbon group.
The law that states: Matter cannot be created or destroyed, but it can change forms.
What is the Load of Conservation of Mass.
Sodium has 11 protons, and since it's mass number is 23, we know that it has _______ electrons and _______ neutrons.
What is 11 electrons and 12 neutrons.
Chlorine has this many energy levels.
What is 3.
The Periodic Table is made of Standard metals, Transition metals, inner transition metals and these.
What is nonmetals.
This group contains 2 metals, 2 metalloids, and 2 nonmetals.
What is the Nitrogen group.
Atoms of an element with the same number of protons but different numbers of neutrons.
What are Isotopes.
Argon-38 has this many neutrons.
What is 20.
The number of energy levels in Bromine.
What is 4.
The symbol Au represents the latin word for this golden element.
What is aurum.
This group does not react with other elements.
What is the Noble Gases Group.