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Atom Structure
Numbers
Periodic Table
Bond I
Bond II
100
positively charged subatomic particles
What is a proton
100
The number of protons in the nucleus of an atom
What is the atomic number
100
horizontal rows on the periodic table
What is a period
100
A charged atom
What is an ion
100
bond that forms when electrons are transferred from one atom to another
What is an ionic bond
200
subatomic particle with a similar mass to the proton
What is the neutron
200
the number of electrons that fills all levels except the first
What is 8
200
columns on the periodic table
What is a group
200
electrons in the highest energy level
What is valence electron
200
bond that forms with atoms share electrons
What is a covalent bond
300
subatomic particles available to be lost, gained, or shared
What is the electron
300
atoms of the same element with different numbers of neutrons
What is an isotope
300
elements that can easily replace another element in a chemical compound are found in the same
What is group
300
elements with few valence electrons that lose them easily
What is a metal
300
a diagram showing only the element symbol and valence electrons
What is an electron dot diagram
400
area of the atom with the most mass, but very little volume
What is the nucleus
400
sum of protons and neutrons
What is the mass number
400
Explains that the properties of elements follow a regular, repeating pattern
What is the Periodic Law
400
rule that explains why some atoms form bonds and other do not
What is the stable octet rule
400
the individual particles of a substance held together by covalent bonds are called
What is a molecule
500
three dimensional areas of the atom that have the least mass, but the most volume
What is the electron cloud
500
a weighted average of the masses of all the naturally occurring isotopes of an element
What is the atomic mass
500
Russian chemist that developed the first periodic table
Who is Mendeleev
500
a charged group of atoms
What is a polyatomic ion
500
The chemical formula for a compound formed between carbon and chlorine
What is CCl4