This group of metals is highly reactive with water and has only one valence electron.
What are alkali metals?
This category of elements is shiny, malleable, and a good conductor of electricity.
What are metals?
As you move from left to right across the periodic table, atomic radius does this.
What is decrease?
The correct name for Hg(NO3)2.
What is mercury (II) nitrate?
This scientist is credited with developing the first periodic table.
Who is Mendeleev?
Magnesium and calcium belong to this family of elements?
What are alkaline earth metals?
Metalloids have properties of these two classes of elements.
What are metals and nonmetals?
Ionization energy does this as you move across a period.
What is increase?
The formula for iron (II) nitrate.
What is Fe(NO3)2?
Mendeleev arranged his periodic table based on this property.
What is atomic mass?
The halogens are found in this group of the periodic table.
What is group 17?
Nonmetals tend to do this in chemical reactions to form negative ions.
What is gain electrons?
Electronegativity is highest in this element.
What is fluorine?
The name for NiCO3
What is nickel (II) carbonate?
The modern periodic table is arranged by this property instead.
What is atomic number?
This group of gases is known for being unreactive and having full valence shells.
What are noble gases?
Silicon is an example of this type of element.
What is a metalloid?
This term describes the ability of an atom to attract electrons in a bond.
What is electronegativity?
The formula for manganese (III) phosphate.
What is MnPO4?
Name one major difference between Mendeleev's table and today's table.
(multiple answers)
Noble gases do not react easily because of this reason.
What is having full valence electron shell?
List four properties of nonmetals.
What are brittle, poor conductors, dull, and low density?
Elements in the same column have the same number of these. (besides Helium)
What are valence electrons?
The name for Sn(NO3)4
What is tin (IV) nitrate?
Mendeleev left gaps in his periodic table for this reason.
What are elements that haven't been discovered yet?