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Periodic table

Review of Periodic Table

QuestionAnswer
Elements are arranged this way on current periodic table increasing atomic number
Overall charge of an atom neutral
charge of the nucleus of an atom positive
Can be hammered without breaking. Malleable
Name of Group 1A Elements Alkali Metals
Name of Group 2A Elements Alkali Earth Metals
Name of Group 7A Elements Halogens
Name of Group 8A Elements Noble Gases
Vertical columns on P.T. are called what? Group/Family
Horizontal Rows on P.T. are called what? Period
Can be formed into wires Ductile
Cannot be hammered; Will shatter Brittle
Another word for a poor conductor of heat or electricity Insulator
80% of the periodic table is made up of these Metals
Is the sum of protons + neutrons Atomic Mass
Is the number of protons only Atomic Number
Subatomic particle with a positive charge proton
Subatomic particle with a negative charge electron
Subatomic particle with no charge neutron
change in number of protons different element
change in number of neutrons isotope
change in number of electrons ion
Element that is a nonmetal in group 1 (1A) Hydrogen
B, Si, As, Te, At, Si, Sb are the 7 elements that are... metalloids aka semiconductors
Subatomic particles found in the nucleus protons + neutrons
Subatomic particles that must be equal so atom has neutral charge protons + electrons
Elements were arranged this way on the 1st periodic table increasing atomic mass
Charge of the nucleus only positive
Charge of the entire atom zero (neutral)
name of elements from Groups 1A - 7A representative
electrons found closer to the nucleus of an atom core
electrons found furthest from the nucleus of an atom valence
Contribution made by electrons to the atom volume and chemical properties
Contribution made by protons to the atom identity and 1/2 atomic mass
Contribution made by neutrons to the atom 1/2 atomic mass
top row of f block belongs to this period 6th period
bottom row of f block belongs to this period 7th period
Created by: cadetjt
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