Name that element
Atomic number 1
This Russian scientist developed the first modern periodic table.
Who is Dimitri Mendeleev?
Non-reactive gases found in the last column of the periodic table
What are noble gases?
Different versions of the same element
What is an Isotope?
A charged atom
What is an ion?
Element that is the basis of life
What is carbon?
The first attempt at grouping elements by properties
What are triads?
The first column of the periodic table
What are alkali metals?
The number of this particle is what is different across isotopes
What are neutrons?
Electrons posses this type of charge
What is negative charge?
A radioactive element with chemical symbol of U
What is uranium?
This scientist was the first to determine atomic number
Who is Henry Moseley?
The group in the second column of the periodic table
What are alkali earth metals?
Name of unstable isotopes
What are radioisotopes?
This ion is formed when an atom loses an electron
What is a positive ion/ cation?
These elements bond together to form table salt
What are sodium and chlorine?
These two scientists who worked on the periodic table share a first name.
Who are the Johns?
This group needs only one more electron to be stable
What are halogens?
Working from this number can determine how many neutrons are in an isotope
What is atomic mass?
The alkali metals form this type of ion.
What is a + Ion
A metal that is liquid at room temperature
What is mercury?
Part of Mendeleev's success with his periodic table is he left gaps for these.
What are undiscovered elements?
The large group of elements in the middle of the periodic table
What are transition metals?
This is the reason many listed atomic masses are in decimals.
What is the average of isotope masses?
When Oxygen reacts it will form this charge level of ion
What is a -2 ion?