Atom parts Flashcards
(12 cards)
Atomic Number
the number of protons in an atom
Atomic weight
the number of protons plus the number of neutrons
Base
a substance that combines with hydrogen ions
Catalyst (enzyme)
a molecule that influences the rate of chemical reactions but is not consumed in the reaction
Compound
a combination of two or more atoms of different elements
Covalent bond
atoms are held together by sharing electrons
Electrolyte
a substance that releases ions into the water
Electron
a small negatively charged particle that orbits the nucleus
Elements
the most fundamental substances of matter
Ion
an atom that has gained or lost electrons, and thus carries an electrical charge
Isotopes
two atoms with the same atomic number but different atomic weights
Necleus
the area of an atom where protons and neutrons are located
