The Element Hydrogen
What is H
The symbol He
What is Helium
The horizontal rows on a periodic table
What are periods
The M in Man is for what part of the element key
What is mass?
This scientist classified the periodic table
Who is Dimitri Mendeleev?
The Element Chlorine
What is Cl
The Symbol B
What is Boron
This is the ability to be pulled into thin wires
What is Ductility
The amount of neutrons in Silicon
What is 14?
This scientist figured out atomic numbers
Who is Henry Moseley?
The Element Potassium
What is K
The symbol Ne
What is Neon
Lithium, Sodium, and Potassium are found in this group
What is Alkali Metals
The Atomic Mass for Osmium
What is 190.23?
This scientists was a Russian teacher and chemist
Who is Dimitri Mendeleev?
The Element Gold
What is Au
The Symbol Ag
What is Silver
These nonmetals only react in laboratories
What are noble gases?
The Name, Protons, Neutrons, and Electrons for C
What is Carbon, 6 protons, 6 neutrons, and 6 electrons?
The 2nd group on a periodic table is
What are Alkaline Earth Metals?
The Element Mendelevium
What is Md
The Symbol At
What is Astatine
The lanthanides and actinide groups are part of what category of metals
What are the transition metals?
The Name, Protons, Neutrons, and Electrons for Pb
What is Lead, 82 protons, 125 Neutrons, 82 Electrons?
An element that has physical and chemical properties of both metals and nonmetals
What are metalloids?