atomic theory
what is a atom?
the smallest particle that can still be considered a element
what is atomic mass?
the average mass of all the isotopes of that element.
what are componds?
substances the form when atoms or two elements bond together.
what is a component?
a strong glue that is used to bind objects together.
what is a acid?
acid is a compound that reacts with the metals and carbonates, tastes sour and turns blue with litmus paper.
what is an electron?
negatively charged particles in a atom.
what is the periodic table?
a chart showing all of the elements arranged according to the repeating pattern of their properties.
what are valence electrons?
the electrons in a atom with the highest energy.
what is a ion?
a atom or group of atoms that has either a positive or negative charge.
what does corrosive mean?
meaning they wear away other materials.
what is the dense center of a positively charged atom?
what is a nucleus.
what is a chemical symbol?
a one or two letter abbreviation for for the element.
what does malleable mean?
a material that can be hammered or rolled into flat sheets or other shapes
what is a polyatomic ion.
an ion made of one or more atoms.
what is a indicator?
a compound that changes color when it comes into contact with an acid.
what is a proton?
the positive charged atoms in a atom.
what is luster?
is a material with a shiny and reflective
what is a ionic bond?
when atoms that easily lose electrons with atoms that easily gain electrons, they transfer valence electrons.
what is a base?
a base tastes bitter, feels slipery, and turns red with litmus paper.
what are isotopes?
atoms with the same number of protons and different number of neutrons.
what is reactivity?
reactivity is how an element reacts when it comes in contact with other elements.
what is a molecule?
a neutral group of atoms joined by covalent bonds
what is naturalization.
the reaction between an acid and base.