Believed in tiny, invisible particles make up everything, were called atomos.

Positive charge, subatomic particle that makes up the nucleus of an atom

Russian chemist who formed the first periodic table

First classification in the periodic table, brittle and low melting point

Very center of a black hole with infinite density

States that matter is composed of very small atoms that are the same but differ in size and mass

Negative charge, subatomic particle that circles around an atom

What game gave Mendeleev inspiration for the organization of the periodic table

Soft metals with near the left of the periodic table

Antithesis of a black (theoretical but can be mathematically proven)

suggested that atoms had negative charged electrons embedded in a positive sphere

No charge, subatomic particle that makes up the nucleus of an atom

Mass and similar properties

Nonmetal that is very stable and almost un reactive

States that gravity and space and time are each separate forces that don’t interact with each other

an atom was mostly empty space. Electrons moved around a small, positively charged nucleus in the center of the atom

Small, dense clump of subatomic particles at the center of an atom

He left spaces open on his table where the difference between mass or properties was too great

Un reactive, most stable elements at the very right of the periodic table

States that gravity bends space time and space/time is connected.

Universe is composed of five base element, fire, earth, water, air, aether

Electrons on the outer part of an atom

Arrangement of elements by mass and properties

Columns 3 to column 12

Type of matter composed of one type of quark that may inhabit the center of neutron stars