Chemistry 2018 Flashcards
matter
Anything that is made up of atoms
atoms
the building blocks of matter
proton
an atomic particle in the nucleus that has a positive charge
electron
an atomic particle that orbits the nucleus
atomic particles
particles that make up an atom
nucleus
the centre of an atom
neutron
an atomic particle found in the nucleus that has a neutral charge
AMU
atomic mass unit
electron shell
where the electrons orbit the nucleus
element
a substance made of one type of atom
compound
a substance made of more than one type of atom
periodic table
a table of elements
atomic number
how many protons and electrons an atom has
atomic mass
the mass of an atom
alchemist
a person who transforms or creates something through a seemingly magical process
investigation
a formal inquiry or systematic study
observation
the ability to notice things, especially significant details
scientist
a person who is studying or has expert knowledge of one or more of the natural or physical sciences
atom
the smallest particle of a chemical element that can exist
ion
an atom that has a charge that is not neutral
cation
an ion that has a +ve charge
anion
an ion that has a -ve charge
valence shell
the outermost shell of an atom
valence electrons
electrons in the outermost shell of an atom
