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Honors Per. Table

Honors Periodic Table

QuestionAnswer
valence shell Outermost shell of an atom
atomic mass Number of protons plus the number of neutrons
conductivity Ability for heat or electricity to flow through it
neutron Part of an atom with a neutral charge; located in the nucleus
electron Part of an atom with a negative charge; orbits the nucleus on shells; smallest subatomic particle
malleable Able to be flattened out
ductile Able to be stretched without breaking; not brittle
proton Part of an atom with a positive charge; located in the nucleus
atomic number Always equal to the number of protons in an atom
luster Ability to reflect light
reactive Causes a chemical reaction and releases energy
family/group Also called group; columns on the periodic table (go up and down); Elements in a group have the same number of electrons in the outer level
period Rows on the periodic table (side to side); Each row represents the number of energy levels
Most elements are _____ at room temperature. solid
Two elements that are liquid at room temperature Bromine, mercury
Are most elements metals, nonmetals, or metalloids? metals
Where are metalloids located? On the stair step
Where are metals located? To the left of the stair step
Where are nonmetals located? To the right of the stair step
What do elements do if they are reactive? Take, give, or share electrons to create compounds
Most reactive metals Group 1 - Alkali Metals
2nd most reactive metals Group 2 - Alkaline-earth metals
Unreactive group Group 18 - Noble gases
Most reactive nonmetals Group 17 - Halogens
Why are noble gases nonreactive? They have a full outer shell.
How many electrons make a full shell? eight
ion An charged element; this happens because the element gained or lost an electron
anion Negatively charged ion; element gained electron(s)
cation Positively charged ion; element lost electron(s)
Created by: Nisey1996
 

 



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