Vocabulary
The smallest unit of an element that retains the properties of that element.
the letter on the periodic table that represents the elements
What are the building blocks of all matter
Elements
Strong, Shiny, Attracts Magnets, Reflects Light, Good Conductors
A pure substance that cannot be broken down into any simpler substances.
Element
A table of chemical elements arranged in order of atomic number in rows and columns.
periodic table
First letter is capital and second is lowercase.
What are the properties of a nonmetal on the periodic table?
Brittle, Not Shiny, Poor Conductors, Absorbs Light
A particle in the nucleus of an atom that carries one unit of positive electric charge.
Proton
Any substance that is formed by combination of two or more elements and acts like a single substance.
Compound
Electrons that orbit around the nucleus on energy levels is called
Shells
What are the properties of a metalloid on the periodic table?
Shiny, Poor Conductor, Brittle (Looks like a metal, acts like a non-metal)
A particle in the nucleus of an atom that has NO net electric charge.
Neutron
A particle that contains more than one atom joined together.
Molecule
How many sections are there on the periodic table?
three
How can you determine the number of protons?
Same as the atomic number
A particle in the space outside the nucleus of an atom that carries one unit of negative electric charge.
Electron
An atom’s dense center, contains protons and neutrons.
Nucleus
Who formed the periodic table?
Dmitri Mendeleeve
How can you determine the number of neutrons?
Subtract Atomic Mass from the Atomic Number