Structure
The identifying number located at the top of each element.
What is the ATOMIC #
Group 1
What group is all metals?
The electrons involved in chemical reactions.
What is a Valence?
All have the same number of energy levels or energy shells.
What are Periods?
This makes up about 80% of the air we breathe
What is Nitrogen?
Has the symbol Fe
What is Iron?
The symbol for Platinum
The letters that identify the element
What is a symbol?
Is an exception in group 1 because it is not metal.
What is Hydrogen?
Group 18 elements are extremely nonreactive nonmetals known as this.
What are noble gases?
Periods that determine valance electrons & reactivity.
What are periods 1-18?
What is Aluminum?
Has the symbol Ag
What is Silver?
The symbol for Lawrencium
Vertical columns on the periodic table
What are groups?
Alkaline earth metals not found in pure state, found with other elements.
What is Group 2?
Average mass of all the isotopes of that element
What is atomic mass?
The 3 classes of elements are these.
What are Metals, Non Metals & Metalloids
Cement and chalk are compounds of this.
What is calcium?
Has the symbol W
What is Tungsten?
The symbol for Plutonium
What is Pu?
Group 3-12 plus Al, Ga, In, Tl, Sn, Pb, B
Which elements are metals?
Elements in the same group or family have the same number.
What are valence electrons?
Periods that determine energy levels
What are periods 1-7?
What is 118?
Has the symbol Na
What is sodium?
The symbol for Mercury
What is Hg?
Soft, silvery metals that are extremely reactive. Not found in pure state, found with other elements.
What are Alkali Metals?
Colorful & Corrosive
What are Halogens?
Negatively charged particle that orbits the center of an atom
What is an electron?
Series contains elements 58 through 71
What is Lanthanide?
Metal that is not solid at room temperature
What is Mercury?
Has the symbol Kr
What is Krypton?
The symbol for Neodymium
What is Nd?