The tiny central core of an atom that contains protons and neutrons.
What is the nucleus
100
the current model of the atom form the 1920s
What is the Modern Model
100
an atom or group of atoms that has become electrically charged
What is an ion
200
the horizontal rows on the periodic table
What are periods
200
a part of an atom that carries a positive charge
What is a proton
200
the model of an atom proposed by a japanese physicist that proposed an atom had a large sphere in the center that carried a positive charge. His model showed the electrons revolving around the sphere like the planets around the sun
What is the Nagaoka Model
200
the attraction between two oppositely charged atoms
What is an ionic bond
300
Carbon, Silicon, Germanium, Tin, and Lead
What is the carbon familiy
300
the electrons farthest away from the nucleus that are involved in bonding
what are valence electrons
300
the model of an atom that concluded that an atom is mostly empty space and that electrons orbit randomly around a small positively charged nucleus
What is the Rutherford Model
300
seashells, chalk, eggshells, and limestone
What is polyatomic ions
400
what is the chemical symbol for chlorine
What is Cl
400
One way to show the valence electrons of and atom
What is an electron dot diagram
400
the oldest model of an atom that suggested that an element is made of small atoms and that different elements have atoms of different mass
What is the Dalton model
400
the chemical formula for magnesium oxide
What is MgO
500
noble gases
What are helium, neon, argon, krypton, xenon, radon
500
Part of an atom that carries no charge (aka is NEUtral)
What is a neutron
500
this model described an element as a muffin with berries scattered in it